A bulb is conneted to an ideal battery o...

A bulb is conneted to an ideal battery of emf 10 V so that the resulting current is 10 mA. When the bulb is connected to 220 V mains (ideal), the current is 50 mA. Choose the correct alternative (s)

In the first case, the resistance of the bulb is `1KOmega` and in second case, it is `4.4KOmega`.

It is possible since ohm's law is not followed

The increase in resistance is due to heating of the filament of the bulb when it is conneted to 220 V mains

None of these

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The correct Answer is:

B, C

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RESONANCE-CURRENT ELECTRICITY-Exercise-2 (Part-3)

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