Solution:
Let R1, R2 and R3 be the resistances of three bulbs, respectively.
In series order,
R = R1 + R2 + R3
But R = V2/P and supply voltage is the same as the rated voltage
When three identical bulbs of 60 W, 200 V rating are connected in series to a 200 V supply, the power drawn by them will be
Let R1, R2 and R3 be the resistances of three bulbs, respectively.
In series order,
R = R1 + R2 + R3
But R = V2/P and supply voltage is the same as the rated voltage