3. The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current ???
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Answer:
Given:
Current gain (α)=0.967
Emitter current =10mA
To find:
The value of base current of the transistor = ?
Solution:
The common gain DC current us is given by,
α=0.967=IEIC=10IC
IC=0.967∗10
IC=9.67mA.
The base current of the transistor is given by the formula,
IE=IB+IC
10=IB+9.67
IB=0.33mA.
The value of base current of the transistor is 0.33mA.
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