A resistor with a 15.8 V potential difference across its ends develops thermal energy at a rate of 324 W.

Question

Question

Part A

What is the current in the resistor?

Part B

What is its resistance?

science physics

Answer 1

Answer #1

a) power = 324 W

P = VI

324 = 15.8*I

I = 20.5 A

so current is 20.5 A

b) V = IR

R = V/I = 15.8 / 20.5 = 0.77 ohm

Answer 2

Similar Homework Help Questions

3. A 1500 w hair dryer operates on a household outlet of 120 V. What is...

3. A 1500 w hair dryer operates on a household outlet of 120 V. What is its resistance? (1 point) 09.6 Ω 012.5 Ω O 10.40 08.1 Ω potnt) 4 A resistor has a 15.0 V potential difference across its ends. It develops thermal energy at a rate of 327 W. What is the current in the resistor? O68.8 A 014.5 A 045.9 A 021.8 A
3.5F 16. A minterdevelops har the rate of20 w when the potential difference across its ends...

3.5F 16. A minterdevelops har the rate of20 w when the potential difference across its ends s0v The resistance of the resistor is approximately ?)30? ?)45? C) D) 2? 5.5 ? 125? E)
PART A: A voltage of 18.0V across the terminals of a device produces a current of...

PART A: A voltage of 18.0V across the terminals of a device produces a current of 3.00 mA through the device. What is the resistance of the device? Express your answer in kilohms to three significant figures. PART B: An old battery with an emf of 8.4 V has a terminal voltage of 8.0 V when it is supplying a current of 2.0 mA. What is the internal resistance of the battery? Express your answer in ohms as an integer....

A solar cell generates a potential difference of 0.0912 V when a 500 Ω resistor is...

A solar cell generates a potential difference of 0.0912 V when a 500 Ω resistor is connected across it, and a potential difference of 0.1409 V when a 1000 Ω resistor is substituted. a) What is the internal resistance of the solar cell? b) What is the emf of the solar cell? c) The area of the cell is 5.0 cm2, and the rate per unit area at which it receives energy from light is 2.0m W/ cm2. What is...
A potential difference of 27.0 V is measured across a 4.50 ✕ 103 Ω resistor. 9....

A potential difference of 27.0 V is measured across a 4.50 ✕ 103 Ω resistor. 9. [-/10 Points] DETAILS SERCP10 21.WU.002. A potential difference of 27.0 Vis measured across a 4.50 x 1032 resistor. (a) Determine the current through the resistor. A (b) Determine the power dissipated by the resistor. w
Thermal energy is produced in a resistor at a rate of 96.0 W when the current...

Thermal energy is produced in a resistor at a rate of 96.0 W when the current is 3.38 A. What is the resistance? Number the tolerance is +/-296 Click if you would like to Show Work for this question: Open Show Work Units

A voltage of 9.0 V across the ends of a resistor produces a current of 6.00...

A voltage of 9.0 V across the ends of a resistor produces a current of 6.00 mA through the resistor. What is the resistance of the resistor?
Find current and potential difference across each resistor

a.) Find the current through resistor a) in the figure.b.) Find the potential difference across resistor a) in the figure.c.) Find the current through resistor b) in the figure.d.) Find the potential difference across resistor b) in the figure.e.) Find the current through resistor c) in the figure.f.) Find the potential difference across resistor c) in the figure.g.) Find the current through resistor d) in the figure.h.) Find the potential difference across resistor d) in the figure.I can tell that...
A potential difference of 100 V produces a current of 3.0 A in a certain resistor....

A potential difference of 100 V produces a current of 3.0 A in a certain resistor. (a) What is the resistance of the resistor? (b) What is the current when the potential difference is 25 V? Please show work.

A power supply maintains a potential difference of 67 .9 V across a 1850 Ω resistor....

A power supply maintains a potential difference of 67 .9 V across a 1850 Ω resistor. current: The four resistors in the figure have an equivalent resistance of 18 Ω. The resistances are as follows: R1 10 Ω. Rs = 6.0 Ω, and R3 4.0Ω. Calculate the value of Rx. R2