If a current of 4A passing through a circuit generates

linziboobeary1o8p

linziboobeary1o8p

Answered question

2022-05-08

If a current of 4A passing through a circuit generates 16W of power, what is the resistance of the circuit?

Answer & Explanation

stafninumfu1tf

stafninumfu1tf

Beginner2022-05-09Added 18 answers

Explanation:
We will be using two formulas: the one for power, to calculate voltage, and Ohm's Law, to calculate resistance.
Power is given by: P=IE, where I is the current and E is the voltage. We are given the power (16 watts), and the current (4 amps), and we can use these to get the voltage:
16=4E
16 4 = E
E=4 volts
Now we use Ohm's Law, which states that V=IR, where V is the voltage, I is current, and R is resistance. We have the voltage (4 volts) and current (4 amps), so all we do is substitute:
4=4R
4 4 = R
R=1 ohm
Therefore, the resistance is 1 Ω

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