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In an P.N.P transistor circuit, the coll...

In an P.N.P transistor circuit, the collector current is 10 mA. If 90% of the electrons emitted reach the collector.

A

The emitter current will be 9 mA

B

The emitter current will be 11 mA

C

The base current will be 1 mA

D

The base current will be -1 mA

Text Solution

Verified by Experts

The correct Answer is:
B
The current distribution is as shown in the figure

As 90% of the electrons constitute 10 mA collector current, the base current = 10% of 10 mA = 1 mA
`because " " I_(E)=I_(C)+I_(B)= 10 +1 = 11 mA`
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