Why are bulb not placed in Resistors?

1.	Why are bulb not placed in Resistors?
Answer» \xa0A bulb is a non-ohmic resistor. This means that, the resistance of the bulb changes with temperature.For Ohm\'s law to be obeyed V/I = R. Thus, resistance needs to be constant even when I and V change.Now, if we replace the resistor with a bulb, when current changes, temperature of the filament of bulb also changes. This changes the resistance of the bulb.Thus, bulbs cannot be used to prove Ohm\'s law. Bulb is considered as v not r

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