In an electrical circuit two resistors of 2 ? and 4 ? respectively are connected in series to a 6 V battery. The heat dissipated by the 4 ? resistor in 5 s will be

Answers (1)

D Deependra Verma

Given resistors are $4Omega ,2Omega$ are connected in series

Equivalent Resistance = $4Omega +2Omega =6Omega$

Voltage = 6V

Current in the resistor = V/R = 6/6 = 1 A

Heat dissipated in resistor = I²Rt=1²×4×5=20J

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In an electrical circuit two resistors of 2 ? and 4 ? respectively are connected in series to a 6 V battery. The heat dissipated by the 4 ? resistor in 5 s will be

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