Question

Calculate the amount of heat generated while transferring 90000 coulombs of charge between the two terminals of a batterv

Answer 1

Q = 90000 , t = 1/h = 3600s  , V = 40V

H = I2Rt = 25 × 25 × 1.6 × 3600  

36 × 105 J or 3600 kJ

P = I2 R = 25 × 25 × 1.6 = 1000W = 1KW