erik3tears erik3tears
  • 22-05-2018
  • Mathematics
contestada

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 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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