erik3tears erik3tears

22-05-2018
Mathematics

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a current of 9 amps flows through a circuit lamp. which formula could be used to determine the resistance of the circuit when the power is 324 watts

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asadullahgiki asadullahgiki

30-05-2018

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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