Maharashtra Board Solutions for Chapter: Semiconductor Devices, Exercise 7: Exercises

What is logic gate? Write down the truth table and Boolean expression for 'AND' gate.

What are the uses of logic gates? Why is a NOT gate known as an inverter?

Why is the emitter, the base and the collector of a BJT doped differently?

Which method of biasing is used for operating transistor as an amplifier?

Define $\mathrm{\alpha }$ and $\mathrm{\beta }$ for a transistor. Derive the relation between them.

The common-base DC current gain of a transistor is $0.967$. If the emitter current is $10 \mathrm{mA}$. What is the value of base current?

In a common-base connection, a certain transistor has an emitter current of $10 \mathrm{mA}$ and collector current of $9.8 \mathrm{mA}$. Calculate the value of the base current.

In a common-base connection, the emitter current is $6.28 \mathrm{mA}$ and collector current is $6.20 \mathrm{mA}$. Determine the common base DC current gain.