Embibe Experts Solutions for Chapter: Semiconductor Devices, Exercise 1: KEAM 2019

The energy gap is much more in silicon than in germanium because

If the Ge diode in the circuit is reverse biased, the current through $2\mathrm{k\Omega }$ resistor

In the context or $p-n$ junction, select the correct statement from the following

A light emitting diode is

In a common emitter amplifier, the input resistance and output resistance are $200\mathrm{\Omega }$ and $500\mathrm{\Omega }$ respectively. If the voltage gain of the amplifier is $50$, then the power gain is

The gates that give output $\mathrm{Y}=0$ for the two inputs $\mathrm{A}=1$ and $\mathrm{B}=1$ are

The following figure is the combination of logic gates, The inputs are $A$ are $B.$ The output is $C.$ Which one of the following choices gives the correct matching ?

In the given circuit $P$ and $Q$ form the inputs. The output $Y$ is