Two identical filament bulbs are each rated 60 W – 220 V
MATHEMATICS · Multi-part · ISC · Physics · Current Electricity · Electrical energy and power
Problem
Two identical filament bulbs are each rated 60 W – 220 V. The two bulbs are connected in series to a 220 V supply.
(a) Calculate the resistance of one bulb at its rated voltage.
(b) Find the power dissipated by each bulb in the series connection.
(c) Compare the brightness of a bulb in this series arrangement with its brightness when it is connected alone across 220 V. Support your answer with suitable numerical values.