Transistor: Working

Q.

If a = 0.98 and current through emitter i_e = 20 mA, the value of B(beta) is

1. 4.9
2. 49
3. 96
4. 9.6

Q. A transistor has a base current of 1 mA and emitter current 90 mA. The collector current will be

1. 90 mA
2. 1 mA
3. 89 mA
4. 91 mA

Q. Low resistance is present at the base emitter junction of a transistor.

1. True
2. False

Q. Most of the majority carriers from the emitter pass through the base region to the collector.

1. False
2. True

Q. If $\alpha$ and $\beta$ are the current gain in the $CB$ and $CE$ configurations respectively of the transistor circuit, then $\frac{\beta -\alpha }{\alpha \beta }$ is equal to