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A and B are two identical bulbs of 40 W ...

A and B are two identical bulbs of `40 W` connected to a `V = 12` volt cell. Switch S is closed to connect a third bulb C in the circuit. What happens to brightness of bulb A? Answer for two cases:
(i) Bulb C is a very high wattage bulb.
(ii) Bulb C is a very low wattage bulb.
All the three bulbs have rated voltage of 12 volt.

Text Solution

Verified by Experts

The correct Answer is:
(i) A glows near its full brightness
(ii) A becomes slightly more brighter
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