A charge of 36C passes through a circuit every 9s.

linziboobeary1o8p

linziboobeary1o8p

Answered question

2022-05-18

A charge of 36C passes through a circuit every 9s. If the circuit can generate 32W of power, what is the circuit's resistance?

Answer & Explanation

Solomon Ferguson

Solomon Ferguson

Beginner2022-05-19Added 9 answers

We'll have to use a few formulas here. First, we will calculate the current of the circuit using the charge. Then, we will calculate the voltage using the power and current. The final calculation will involve using Ohm's Law to find resistance.
Current calculation:
Current, I, is defined as charge per second, or C s . In this case, the charge is 36 coulombs and the time is 9 seconds, so current is 36 9 = 4 a m p s.
Voltage calculation:
Power is given by the formula P=IE. We have power and current, so we'll use them to find voltage. All we do is substitute: 32=4E, E=8 volts.
Resistance calculation:
Finally, we can use Ohm's Law to find the resistance, R: V=IR.
8=4R
8 4 = R
R=2 ohms
Thus the resistance is 2 Ω

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