The Current Gain For Common-emitter Amplifier Is 59. If The Emitter-current Is 6.0 MA, Find (i) Base-current, And (ii) Collector-current.

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Question

The current gain for common-emitter amplifier is 59. If the emitter-current is 6.0 mA, find (i) base-current, and (ii) collector-current.

Solution

Correct option is

The d-c current gain in common-emitter transistor circuit is given by 

             

.  

  

Now, the sum of base-current iB and collector-current iC equals the emitter-current iE, that is,  

             

Solving eq. (i) and (ii), we get  

           .   

SIMILAR QUESTIONS

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When a forward bias is applied to a p-n junction, it :

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Q4

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Q5

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Q6

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Q7

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Q8

p-n junction diode cannot be used :

Q9

For a common base transistor circuit, the emitter-current and the collector-current are 1 mA and 0.96 mA respectively. Calculate the current gain and base current.

Q10

Calculate the current gain  of a transistor if the current-gain  is 0.98.