Question

A current of .4a flows though the circuit of an electric bulb working at 230v what is power of the bulb​

Answer 1

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Given:

➠ I = 4 A

➠ V = 12 volts

➠ t = 5 × 60 = 300s

Heat transfer:

➠ H = VIt

⠀ = 12 × 2 × 300

⠀ = $\sf{\red{\underline{1.44 kJ}}}$

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