A bulb cannot be used in place of a resistor to verify ohms law . Justify this statement with reasons
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The resistance of the filament in an evacuated bulb is highly non-linear w.r.t. Temperature (whence current) and therefore cannot be used to verify strictly linear relationships in Ohm's law. However, the resistance of the tungsten filament(taken out of the bulb) can be determined using Ohm’s law and values plotted to demonstrate the exponential variation of resistance with temperature.
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