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In a silicon transistor, a change of 7.8...

In a silicon transistor, a change of `7.89 mA` in the emitter current produce a change of 7.8 mA in the collector current. What change in the base current is necessary to produce an equivalent change in the collector current?

A

0.9 `muA`

B

`9 muA`

C

`90 muA`

D

900 `muA`

Text Solution

Verified by Experts

The correct Answer is:
C
`I_(b)=I_(e)-I_(c)`
`=7.89 - 7.8`
`=0.09 ` mA
`=90 muA`
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