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NEET Sample Paper NEET Sample Test Paper-10

  • question_answer
    In a transistor, connected in the \[C\varepsilon \] confugarion, the collection current changes by 1mA when the base current changes by \[10\mu A,\] in the operating condition. Then the value of a for the transistor will be:

    A)  \[0.88\]                       

    B)  \[0.99\]

    C)  \[0.72\]                       

    D)  \[0.8\]

    Correct Answer: B

    Solution :

    For the transistor the \[C\varepsilon \] Configuration, we get             \[\beta =\frac{\Delta {{I}_{C}}}{\Delta {{I}_{B}}}=\frac{1mA}{10\mu A}=100\] Current gain (collector - emitter)             \[\alpha =\frac{\beta }{1+\beta }=\frac{100}{101}=0.99\]


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