9. A circular coil of radius 10 cm and with 125 turns is initially oriented perpendicular to a uniform magnetic field of strength 2.50 mT directed out of the page. The wire carries a current of .250 A. a) Sketch the situation. b) Indicate the direction of the magnetic moment of the coil. c) What is the torque on the coil
Answers
Answer:
Explanation:
Given that:
The radius = 10 cm
No of turns = 125
Current in the coil (I) = 0.250 A
Uniform magnetic field B = 2.50 mT = 2.5 × 10⁻³ T
a) The sketch of the situation can be seen below
b)The magnetic moment of the coil is [tex]\mu^{\to} = ni A^{\to}[/tex]
where the direction of the magnetic moment is the same and equivalent to the direction of the area vector in the diagram. The region vector of the coil is parallel to the magnetic field.
In this manner, the direction of magnetic moment is perpendicular to the current loop by right-hand rule direction; which implies out of the page.
(c)
The torque [tex]\tau = \mu^{\to} \times B^{\to}[/tex]
[tex]= \mu B sin \theta[/tex]
where;
[tex]\theta[/tex] between [tex]\mu[/tex] and B = 0
Thus;
[tex]\tau = \mu B sin (0)[/tex]
[tex]\tau = 0[/tex]
Related Questions
I NEED HELP QUICK
In one cycle of any heat engine
A. the net work done is larger than the heat exhausted.
B. more heat flows from the engine than enters the engine.
C. The internal energy of the engine does not change.
D. the net heat flow is zero.
Answers
A ball is thrown at an angle 50 degrees relative to the ground at a speed of 45 m/s. If the ball was caught 30 m from the thrower, how long was the ball in the air? How high did the ball travel a over the thrower?
Answers
Answer:
using the kinematic motion equation
The volume of the vessel is reduced twice,and the number of molecules is reduced three times.How the pressure will change gas?
Answers
Answer:
P₁ = ⅔ P₀
Explanation:
For this exercise we can use the ideal gas equation
PV = n R T
let's write the equation for the initial point, where we will use the subscript o and the end with subscript 2
Suppose the temperature does not change in the process
P₀V₀ / n₀ = P₁V₁ / n₁
They tell us that
V₁ = V₀ / 2
n₁ = n₀ / 3
we substitute
[tex]P_o \frac{V_o}{n_o} = P_1 \frac{V_o}{2} \frac{3}{n_o}[/tex]
P₀ = [tex]\frac{3}{2}[/tex] P₁
P₁ = ⅔ P₀
How are longitudinal and transverse waves alike? How are they different?
Answers
Answer:
Longitudinal and transverse waves have many similarities and differences.
Explanation:
Similarities:
Mechanical waves can be transverse and longitudinal waves.
Transverse and longitudinal waves both have wavelengths and frequencies.
They both have amplitudes
Both waves can travel through a medium or not, but it depends on whether is an electromagnetic or a mechanical wave.
Differences:
Electromagnetic waves can only be transverse.
The particles of the medium in a longitudinal wave move parallel to the direction (motion) of a wave. It is in this back and forth motion.
The particles of the medium in a transverse wave move perpendicular to the direction (motion) of a wave. This means that there would be right angles showing that they are perpendicular.
Longitudinal waves have rarefactions and compressions.
These rarefactions and compressions are used to measure the wavelength of a wave. For instance, a wavelength in a longitudinal wave is measured from rarefaction to rarefaction
Transverse waves have troughs and crests.
Amplitude in a transverse wave is measured from the midline to the crest of trough.
Amplitude in a longitudinal wave is measured based on how closely packed the particles of the medium are
I hope this helps
Answer:
Longitudinal and transverse waves are mechanical waves, so both carry energy through particles of matter. Longitudinal waves transfer energy parallel to the direction of wave motion, and transverse waves transfer energy perpendicular to the direction of wave motion.
Explanation:
trust me youll get it right :D
Where is the ((north)) pole of the bar magnet, based on the magnetic field lines shown?
A. On the left end
B. On the bottom edge
c. On the top edge
D. On the right end
Answers
Answer:
D
Explanation:
The north field of a magnet is the positive side. Arrows pointing out of a side = positive
Isotopes of an
have ..... different physical properties
from other....
of the same elements such as...
and...
Answers
Answer:
Isotopes of same element have different physical properties such as melting points and boiling points
Explanation:
Isotopes represents two or more forms of an element. These isotopes have equal number of protons but different number of neutrons. They have same chemical properties but their physical properties may vary owing to difference in the mass number.
What are supernovae?
A. stars that have reached the end of their lifetimes because their nuclear fuel is exhausted
B. stars that suddenly brighten by 100 to 10,000 times in a day
с. stars that have just been born
D. galaxles that have binary systems
Answers
Answer:
A
Explanation:
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Answer:
A. Stars that have reached the end of their lifetimes because their nuclear fuel
Explanation:
plato
Which of the
following is a good
example of a strike-
slip fault where
many earthquakes
occur?
A. Hawaiian Islands
B. the Rocky Mountains
C. Mojave Desert
D. the San Andreas fault
Answers
Answer: The San Andreas Fault
Explanation: Hope this helps ^^
1 gram of radium is reduced by 3.1 mg in 5 years by alpha decay.
Calculate the half-life of radium.
Answers
Answer:
1 gm = 1000 mg
N = No e^-y t where y = lambda the decay constant
N / N0 = .9969
ln .9969 = - y t
-.00310 = - 5 y
y = .00310 / 5 = .000621
So the half-life = .693 / y
T^1/2 = .693 / .000621 = 1116 or about 1120 yrs
All of the following are characteristics of a laser diode except
Answers
Answer:
D
Explanation:
Given that all of the following are characteristics of a laser diode except
Solution.
A laser diode emit light of a single colour. That is, it emits a monochromatic light in which the light emitted monochromatically will definitely be coherent. That is, a light with a single wavelength emitted by a wide wavelength.
Also, all diode have positive and negative junction which is known as pn junction.
The incorrect among all the options is option D which is the answer.
PlZ help
Why is it advantageous for a boxer to ride with the punch? Why should he avoid moving
into an oncoming punch?
Answers
An object’s motion remains constant when acted upon by what?
Answers
Answer:
An outside force
Explanation:
Newton's law an object in motion stays in motion an object at rest stays at rest unless acted on by an outside force.
What is Compression?
Answers
Answer:
Compression, decrease in volume of any object or substance resulting from applied stress. Compression may be undergone by solids, liquids, and gases and by living systems.
Explanation:
| Britannicahttps://www.britannica.com
What is the impulse required to stop a 4.8 kg mass traveling at 18.9 m/s?
Report your answer to 1 decimal place.
Answers
Answer:
MASS=4.8KG
VELOCITY= 18.9
Put into the formula.
Explanation:
Impulse= Mass* change in velocity, it gives you everything you need to input it into the formula
If you halve the pressure of a constant amount of gas at a constant temperature, what happens to the volume? If you halve the pressure of a constant amount of gas at a constant temperature, what happens to the volume? The volume quadruples. The volume is one-half the initial volume. The volume doubles. The volume does not change g.
Answers
Answer:
The volume doubles
Explanation:
As per the Boyle's law for ideal gases if the gas sample temperature is kept constant, the sample volume varies inversely with the changing pressure. This declaration means the volume will decrease if the pressure increases. The volume will increase if the pressure drops. This regulation can be described like an equation which relates the initial (V1) volume and the initial (P1) pressure to the final (V2) volume and pressure (P2). At a constant heat.
⇒P1V1 = P2V2
Given P2 = P1/2
⇒ V1 = V2/2
V2 = 2V1
The volume doubles
What is the energy of an electromagnetic wave that has a frequency of 5.0 * 10^5 Hz? Use the equation E=hf, where h=6.626 * 10^-34 J*s.
I will mark brainliest!!! :)
Answers
Answer:
3.3*10^-28j
Explanation:
A P E X
The energy of an electromagnetic wave that has a frequency of 5.0 * 10^5 Hz is 3.3 * 10 ^ -28 J
What is Electromagnetic waves ?Electromagnetic waves are the waves that are created as a result of vibration between an electric field and a magnetic field . They are composed of oscillating magnetic and electric field
Energy of Electromagnetic waves can be calculated by
Energy = h * f where h = plank's constant = 6.626 * 10^-34 J s.
f = frequency of electromagnetic waves
given : h = 6.626 * 10^-34 J s.
frequency = 5.0 * 10^5 Hz
Energy of electromagnetic waves = (6.626 * 10^-34 J s) *( 5.0 * 10^5 Hz)
= 33.13 * 10 ^ -29 J
= 3.3 * 10 ^ -28 J
correct answer is c)3.3 * 10 ^ -28 J
Learn more about electromagnetic waves
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The definition that best describes invention is:
Your answer:
Invention is the first product produced on an assembly line
Invention is having a desired goal to achieve something
Invention is changing the size of an existing product
Invention is a process of turning ideas into devices or systems
Answers
Answer: Invention is a process of turning ideas into devices or systems.
Explanation:
Invention is a process of turning ideas into devices or system. Invention, simply has to do with bringing of ideas together so as to create something unique.
It should be noted that without creativity, invention can't take place. Examples of invention include the light bulb, fans etc. They are products that were designed based on the ideas that someone had Wich was turned into a device.
a piece of clay with mass m is traveling with an unknown velocity in the positive x-direction, when it collides and sticks to a block of mass 3m, moving with velocity v=-3m/s. after the collision, the block and clay are stuck together and traveling with a velocity of 1 m/s in the negative x-direction. what was the original velocity of the clay mass?
Answers
Answer:
13 m in the + x direction.
Explanation:
Givens
m1 = m
m2 = 3m
v1= ? = x
v2 = - 3 m/s
v3 = v4 = - 1 m/s
Equation
Let x be the speed of the lighter object before collision.
Momentum before collision = momentum after collision
Solution
mx - 3m * 3m/s = (m1 + m2)*(-1)
m(x - 3*3m/s) = (m + 3m)(-1)
m(x - 9) = - 4m Cancel the ms
x - 9 = 4 Add 9 to both sides
x = 9 + 4
x = 13 m/s
g Two identical toy cars are held at rest on top of identical ramps. Car A rolls down the ramp, through a loop and then moves along a horizontal surface. Car B starts from rest at the same height, but it does NOT complete the loop. It is found that Car B has a faster speed at the finish line than Car A. What is the BEST explanation for why
Answers
Answer:
The kinetic energy of Car B is greater than the kinetic energy of Car A at the finish line.
Explanation:
Both objects have the same kinetic energy at the bottom of the ramp since the ramps are identical. Since Car A passes through the loop, it losses kinetic energy before it gets to the horizontal road and thus decreasing its speed. Car B does not go through the loop so its speed as it gets to the horizontal surface is its speed at the bottom of the ramp.
As both cars move on the horizontal surface, their speed decrease further but since Car B starts with a greater speed than Car A on the horizontal surface, it will end with a greater speed than Car A at the finish line.
This is because, the kinetic energy of Car B is greater than the kinetic energy of Car A at the finish line.
A particle R moves with a velocity of 6 m/s due East and another particle S moves at 8 m/s due South. What is the magnitude of the velocity of R w.r.t S?
Answers
Answer:
10
Explanation:
We can look at this problem as a triangle, r is the hypotenuse so if we take the square root of 6^2+8^2 we get 10
What do all magnets have in common? Select all that apply.
magnetic domains are aligned
magnetic domains are not aligned
movement of protons creates a magnetic field
all magnets have opposite poles ( a North pole and South pole)
movement of electrons creates a magnetic field
moving electrons generate magnetic fields
Answers
Answer:
all magnets have opposite poles (north and south)
magnetic domains are aligned
moving electrons generate a magnetic filed
movement of electrons creates a magnets field
a force acting on a body of mass 24 kg produces an acceleration of 12ms ^-2 . what acceleration will the same force produce in a body of 10 kg
please give answers if they are right and you know how to do it
Answers
Answer: a = 28,8
Explanation:
[tex]F = ma[/tex]
m = 24 , a = 12
[tex]F=ma\\\\F = 24 x12\\\\F=288[/tex]
Same force :
m = 10
a = ?
F = 288
[tex]F = ma \\\\288 = 10xa \\\\28,8=a[/tex]
Look for factors that will help you determine what type of economy exists in Country C. What type of economy does Country C have? developed developing transitioning command
Answers
Answer:
C.) transitioning
Explanation:
Look for factors that will help you determine what type of economy exists in Country C is a transitioning economy.
What is economy transition?The transition economy or economy in transition is an economy that is changing from centrally planned to free market. These submit to Liberalism, where market forces are prices, rather than a centrally planned organization.
For these reasons we can say that the economy of country C is a transition economy.
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Why can’t human males be carriers for sex linked (x-linked) disorders?
Answers
Answer:
This is because the X chromosome is large and contains many more genes than the smaller Y chromosome. In a sex-linked disease, it is usually males who are affected because they have a single copy of X chromosome that carries the mutation.
Explanation:
PLEASE ILL GIVE BRAINLIST Which term describes the high point of a transverse wave?
O A. Crest
O B. Compression
O C. Rarefaction
O D. Trough
Answers
Answer:
I belive that the answer is the A
Crest describes the high point of a transverse wave. Therefore, the correct option is option A.
Transverse waves are those which oscillate in directions that are opposite to the wave's forward motion. Electromagnetic radiation, seismic waves, or water surface ripples are all examples of transverse waves.
A simple transverse wave can be represented by a sine or cosine curve because any point's amplitude—that are, its distance from the axis—is proportional to the sine (or cosine) associated with that angle. Crest describes the high point of a transverse wave.
Therefore, the correct option is option A.
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what is motion wave?
Answers
Answer:
Wave motion is the transfer of energy and momentum from one point of the medium to another point of the medium without actual transport of matter between two pointsxplanation:
When using a serological pipet, the correct volume is dispensed by:_____.
a. emptying the contents of the pipet until the liquid reaches the last volume graduation.
b. emptying the contents of the pipet until the liquid reaches the 0 mL mark.
c. emptying the contents of the pipet until the liquid reaches the 10 mL mark.
d. demptying the contents of the pipet completely into the desired container.
Answers
Answer:
the answer would be c I think
The correct volume is dispensed by emptying the contents of the pipet until the liquid reaches the 10 mL mark.
What is a serological pipet?Pipets are made of graduated glass or plastic are used to measure and dispense a certain volume of liquid.
They can be graded class A or class B based on tolerances, labeled "To Contain" or "To Deliver," and can be sterile or nonsterile. The quantity (Metric).
The correct volume is dispensed by emptying the contents of the pipet until the liquid reaches the 10 mL mark.
Hence option C is correct
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If the force of gravity changes what will happen and what would cause it to change?
Answers
PLEASE PLEASE HELP!! Do ultraviolet light or microwaves have a higher frequency?
Answers
Answer:The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays.
Explanation:
In scientific terms, which situation does NOT represent work done on a rock?
A. Lifting a rock
B. Holding a rock
C. Throwing a rock
D. Pushing a rock
Answers
EXPLAINATION:
All the other answers are alike so this is the only different one
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