Solved Numerical Problem No.5 ( Unit-17: Electronics); HSSC-II (Class-12); Physics (New Book/KPK Text Board, Peshawar) With Verified Answers

In a transistor, the emitter current (Iɛ) is 3.5 A, and the collector current (lc) is 2.35 A, find the base current. Answer ( 1.15 A)

Given:

Emitter Current = `\I_E` =  3.5 A

Collector Current = `\I_C` =  2.35 A

To Find:

Base Current = `\I_B` =  ?

Solution:

The Emitter Current `\I_E` is the sum of the Base current `\I_B`  and collector current `\I_C` ie.

`\I_E` =  `\I_B`  + `\I_C`  

or

`\I_B` = `\I_E`  -  `\I_C`   

putting the given values

`\I_B` = 3.5 A  -  2.35 A   

`\I_B` = 1.15 A ---------------Ans

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