Shane's 100-watt radio draws 7 amps of current on a 120-volt circuit. What is the resistance in the radio?

Answers

Answer 1

Answer:

Resistance, R = 2.04 Ohms.

Explanation:

Given the following data;

Current = 7 amps

Circuit voltage = 120 Volts

Power = 100 Watts

To find the resistance;

First of all, we would calculate the potential difference (voltage level) used by the radio.

Power = current * voltage

100 = 7 * voltage

Voltage = 100/7

Voltage = 14.29 Volts

Next, we solve for the resistance of the radio;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Substituting into the formula, we have;

[tex] 14.29 = 7*R[/tex]

[tex] R = \frac {14.29}{7} [/tex]

Resistance, R = 2.04 Ohms.


Related Questions

Other Questions
What is the perimeter of quadrilateral ABCD?O 15 unitsO 17 unitsO 18 unitso 20 units Jerel runs 5 days each week. On each of 4 days, he runs 2.3 km. If Jerel runs a total of 14 km, how many kilometers does he run on the fifth day?PLEASE HELP! Target due:7) True or False.The verbs in the final paragraph establish a sense of peace and acceptance. the sum of a number x and 4,all divided by 3 Last Questions Im passing out brainliest at 7:40 Have to have the right answer to my Q Combine like terms to simplify; (5x + 2) + (4x + 5). 1 point 9x - 7 9x + 7 -9x - 11 X + 7 Read the scenario and decide which type of banking service is the top priority for eachperson.1. Ja'Mychal is always on the go, and he uses his cell phone for just about everything. He'sheard about banks that have apps in which he can take a picture of a check he wants todeposit, upload the picture to the app, and the money will be deposited to his account.He feels this app will save him time instead of having to go to a bank branch to depositthe money in person. He also wants to be able to see his bank balance through the app.Which bankin service is JaMychal most interested in?2. Kyra has just began making money. Actually, she hasn't really started making money atall. Instead, she receives an allowance each month from her parents, but she wants toPay Herself First. She knows in a year or so she will need some money to pay for carinsurance.Which banking service is Kyra most interested in?3. Sara is about to graduate high school. She has saved money the last few years whileworking a part-time job. Her parents bought her a car when she turned 16, but heryounger brother is about to turn 16 and he In which numbered position would a Period 4 element that is a metal with three valence electrons be located?A) Position 13B) Position 15C) Position 20D) Position 31 Life expectancy on the front line was approximately what is the value of sin 43 degrees to the nearest ten-thousandth? HELPPP PLZ 30 POINTS IFU ANSWER Select the correct answer.How should you hold your toothbrush for the Bass technique?A. Hold the brush at a 45-degree angle to the chewing portion, or the biting surface, of the tooth.B. Hold the brush directly against the gum and the top two-thirds of the tooth.C. Hold the brush at a 45-degree angle to the surface of the tooth and gum line. Please help me out here!! Literally one of my 12 missing assignments lol- Bree took a math test and scored 152 points which was 95% of the total possible points on the test. What was the total number of possible points. Liz has added 20% of the total amount of acid that she needsin the beaker for her experiment. She has put in 10 ml so far.How much more does she need to add? Plz help find the value of given expression[tex] \sqrt{44 + 77} [/tex] find the circumference of a circle with a radius of 5mm Which of the following organelles exist in animal cells? Select all that apply.O MitochondriaO Cell wallO ChloroplastO VacuolesNucleus PLSS HELP 25 POINTS AND BRAINLIEST Today, everything at a store is on sale. The store offers a 20% discount. If the regular price of an item is x dollars, what is the discount price in dollars? 0.8x or x-0.2x 0.9x 0.7x 0.6 Simplify:5mn +9mn(8mn - 4mn 4)