The variation between has been shown by graph for heater filament.

a) |
b) |
c) |
d) |

The variation between has been shown by graph for heater filament.

a) |
b) |
c) |
d) |

1 Answer

127 votes

As the current in heater filament increases, it gets more heated, hence its temperature increases and thereby its resistance increases. Due to which the current will decrease. Hence the variation of and for heater filament will as shown in Fig.(a) |

127 votes

127