Transistor as a Switch

When a transistor is used as a Switch, it operates in the

Draw the diagram for transistor being used as a switch.

What is an active state in a transistor switch?

In which state is the transistor said to be in a switched off mode?

Transistor functions as a switch. Explain.

Transfer characteristics $[$$($output voltage $\left(V_0\right)$ vs input voltage $\left.\left({\mathrm{V}}_{\mathrm{i}}\right)\right]$ for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used.

Explain the working of transistor as a switch.

ln the circuit shown, the transistor used has current gain $\mathrm{\beta } =100$. What should be the base resistor${\mathrm{R}}_{\mathrm{b}}$ so that${\mathrm{V}}_{\mathrm{CE}}=5 \mathrm{V}, {\mathrm{V}}_{\mathrm{BE}} = \mathrm{O} ?$

Assertion: In a CE transistor amplifier the input current is much less than output current.

Reason: The common emitter transistor amplifier has very high input impedance -