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A resistance of 25 Ω is connected to a 12 V battery. Calculate the heat energy in joules generated per minute.

  

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A resistance of 25 Ω is connected to a 12 V battery. Calculate the heat energy in joules generated per minute.

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Given: R = 25 ohms, V = 12 V, H = ?, t = 60 sec

V = IR

12 = 25 x I

I = 0.48 amp

We know that

H = I2RT

H = 0.482 x 25 x 60

H = 345.6J/s

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