Question

a bulb cannot be used in a place of a resistor to Verify Ohm's law justify the statement

Answer 1

bulb cannot be used to verify ohms law because the resistance of bulb will not remain same due increase in temperature of bulb. and resistance increase as temperature get increases

Answer 2

Answer:

bulb is a non- ohmic resistor. it does not obey ohm's law. but in a bulb, as the current varies the temperature of the filament of the bulb , it results in change of resistance offered by the bulb. thus,ohms law cannot be proved by using a bulb in the place of a resistor

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