Question

Three identical electric bulbs A, B and Care
connected as shown. What changes occur in
brightness of the bulbs, when the switch is closed?
तीन समरूप विघुत बल्बों A, B तथा C को दर्शाए अनुसार संयोजित
किया जाता है। जब स्विच को बन्द किया जाता है, तब बल्बों की
चमक में क्या परिवर्तन होता है?​

Answer 1

Answer:

When the switch is closed, the Bulb C also glows as the current passes and Bulb B and C glow with same luminosity

Answer 2

Answer:

The intensity of the light emitted by the bulb increases when the flow of current increases and even if the switch is not connected but still the current flow from the source to the bulb namely A and B so the only bulb affected will be the bulb C which will not glow since one of the bulb doesn't glow therefore the two bulb will glow with more intensity