a current of 9 amps flows through a circuit lamp. which formula could be used to determine the resistance of the circuit when th
e power is 324 watts
1 answer:
As, the formula of power=P = V*I
By using ohms law( V=I*R)
The formula of power become
P= I² * R
342/(9)²=R
R= 4 Ω
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