When npn transistor Is Used As An Amplifier

In a common base transistor circuit, the current gain is 0.98. On changing in the emitter current by 5.00 mA, the change in the collector current is

On increasing the reverse bias to a large value in a pn junction diode, the current  

When arsenic is added as an impurity to silicon, the resulting material is

What is the voltage gain in a common emitter amplifier, where the input resistance is  and load resistance ? Given .

In a pn junction dipole at a high value of reverse bias, the current rises sharply. The value of reverse bias is known as

The total current in the block is 

In a pnp transistor, the p-type crystal acts as

The current gain in a common emitter transistor is

If the input and output resistances in a common-base amplifier circuit are  respectively, what is the voltage amplification when the emitter current is 2 mA and current gain ?

When a pn junction is reverse biased, the flow of current across the junction is mainly due to