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For transistor action, which of the foll...

For transistor action, which of the following statements are correct ?

A

collector current is equal to the sum of base current and emitter current

B

The input resistance depends upon the current `I_` in the transistor.

C

The emitter junction is forward biased and collector junction is reverse biased.

D

Both the emitter junction as well as the collector junction are forward biased.

Text Solution

Verified by Experts

The correct Answer is:
B, C
for a transistor, `beta=I_c/I_B or I_B=I_c/beta`.
`R_(i)=V_(i)/I_B=V_(i)/I_cbeta`, i.e., `R_(i)prop1/I_c`. Therefore,` R_(i)` depends upon collector current `I_c`. For a transistor action, the emitter junction is forward biased and collector junction is reverse biased.
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