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In a n-p-n transistor 10^(10) electrons ...

In a `n-p-n` transistor `10^(10)` electrons enter the emitter in `10^(-6)s`. `2%` of the elecrons are lost in the base. The current transfer ratio and the current amplification factor will be

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`I_(B)=(2)/(100)I_(E)`
`I_(E)=I_(B)+L_(C )=(2)/(100)L_(E)+I_(C )`
`I_(C )=(98)/(100)I_(E)`
Current transfer ratio `alpha=(I_(C ))/(I_(E))=(98)/(100)=0.98`
Current amplification factor `beta=(I_(c ))/(I_(B))=(98)/(2)=49`
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CP SINGH-SEMICONDUCTORS-Exercises
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  2. Which of the followin is correct regarding band theroy of solids?

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  3. In isulators

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