Question

Identify the semiconductor devices whose characteristics are given above in the order $\left(a\right),\left(b\right),\left(c\right),\left(d\right):$

Answer 1

Simple diode conducts only in forward bias. It does not conduct in reverse bias.

Zener diode conducts in forward bias. When reverse bias potential is increased, at a point zener breakdown occurs and then it behaves as a voltage regulator.

Solar cell current is composed of dark current and forward-bias current.

Resistance of LDR decreases with intensity of light.