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An electric device operates at 24V and has a resistance of 8Ω Calculate the power of the device and current flowing through it.

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An electric device operates at 24V and has a resistance of 8Ω Calculate the power of the device and current flowing through it.

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Best answer

V = 24V,

R = 8Ω

(i) P = V2/R = (24 x 24)/8 = 72W

(ii) Current flowing P = VI

72 = 24I

I = 72/24 = 3A

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