Question

The reverse saturation current in a p–n junction diode 

(1) increases with increase in applied voltage 

(2) decreases with increase in applied voltage 

(3) increases with increase in temperature 

(4) decreases with increase in temperature

Answer 1

Correct option: (3) increases with increase in temperature

Explanation: 

Reverse saturation current depends on the rate of generation of electron hole pair, which is independent of the applied voltage.

(E_g = energy band gap, K = Boltzman constant, T = Temperature) 

Hence I_S increases as T increases.