NEET Sample Paper NEET Sample Test Paper-9

  • question_answer The current gain of a transistor in common emitter circuit is 40. The ratio of emitter current to base current.

    A)  40                  

    B)  41

    C)  42                  

    D)  43

    Correct Answer: B

    Solution :

    For current gain circuit, \[\frac{{{i}_{c}}}{{{i}_{b}}}=40\]                                 \[{{i}_{c}}=40{{i}_{b}}\]                                 \[{{i}_{e}}={{i}_{c}}+{{i}_{b}}=41{{i}_{b}}\] So,       \[\frac{{{i}_{e}}}{{{i}_{b}}}=\frac{41{{i}_{b}}}{{{i}_{b}}}=41\]

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