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18/02/2022 3:31 pm
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A resistor dissipates 192 J of energy in 1 s when a current of 4A is passed through it. Now, when the current is doubled, the amount of thermal energy dissipated in 5 s in______J.
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18/02/2022 3:33 pm
E = i2Rt
192 = 16(R) (1)
R = 12 Ω
E1 = (8)2 (12) (5)
= 3840 J