Embibe Experts Solutions for Chapter: Semiconductor Devices, Exercise 7: Exercise (Analytical Questions)

If the two ends of a $\mathrm{p}-\mathrm{n}$ junction are joined by a wire, 

During regulation action of a Zener diode correct statement is :-
(a) the current and voltage across the Zener remains fixed.
(b) the current through the series resistance $\left(R_{\mathit{s}}\right)$ changes.
(c) the Zener resistance is constant.
(d) the resistance offered by the Zener diode changes.

The energy of radiation emitted by LED is :-

The output of gate is low when at least one of Input is high. This is true for:-

'Output is LOW if and only if all the inputs are HIGH' Indicate the logic gate for which the above statement in true:-

The diagram of a logic circuit is given below. The output of the circuit is represented by:-

The following configuration of gates is equivalent to:_

The combination of the gates shown represents:-