Physics, asked by gauravjoshi4437, 1 year ago

A small bulb has a resistance of 2ω when cold. it takes up a current of 0.4 a from a source of 4v and then starts glowing. calculate (i) the resistance of the bulb when it is glowing and

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Answered by RK242

4

The final resistance of the bulb when it starts glowing is 10 ohms

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