Factors affecting Resistance

Factors affecting Resistance given

Three Factors affecting Resistance are

As Length of wire increases the Resistance also increases.

Cross-section Area-
More is Cross-section Area of wire,less is resistance as current passes through large area.

Resistance of certain material increases with increase in Temperature and opposite to this Resistance of certain material decreases with temperature.

eg.Thermistor is heat sensitive Resistor
Thermistor are used in many application like Temperature monitoring circuits,fire alarm system ,etc


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