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  3. A current of 2 A is passed through a coil of resistance 75 Ω for 2 minutes. (a) How much heat energy is produced? (b) How much charge is passed throug

. A current of 2 A is passed through a coil of resistance 75 Ω for 2 minutes. (a) How much heat energy is produced? (b) How much charge is passed throug

Best Answer

Current (I) = 2 A

Resistance, R = 75 Ω

Time, t = 2 min or 120 s

(a) Heat produced, H = I2Rt or

H = (2)2 (75) (120) J = 36000 J

(b) Charge passed through the resistance, Q = It or

Q = (2) (120) C

Q = 240 C

 

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