Question

Six Diwali tree lights are arranged in a parallel circuit as shown in figure. Each bulb dissipates 10 W when operated at 120 V. The total power consumption, of the array, would be (nearly)

(1) 600 Watt

(2) 0.6 Watt

(3) 120 Watt

(4) 60 Watt

Answer 1

(4) 60 Watt

Resistance of the each buls

The given 6 resistance are connected in parallel, therefore equivalent resistance is given by:

Hence the power consumed by the given arrangment is given by