Two resistors

PHYSICS · Subjective · CBSE · Physics · Current Electricity · Current Electricity

Problem

Two resistors, R1=4 ΩR_1 = 4\,\Omega and R2=6 ΩR_2 = 6\,\Omega, are connected in parallel across a 12 V battery. (i) Calculate the total power drawn from the battery initially. (ii) If the resistance of R2R_2 rises by 20 % due to heating while R1R_1 remains unchanged, find the new total power drawn.

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