brid8812 brid8812

02-07-2021
Physics

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A lamp is connected to a 230 V mains supply. A current of 4 A flows through the lamp for 30 seconds.

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Numenius Numenius

03-07-2021

Answer:

The energy dissipated is 27600 J.

Explanation:

Voltage, V = 230 V

Current, I = 4 A

time, t = 30 s

The energy is given by

E = V I t

E = 230 x 4 x 30

E = 27600 J

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