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JEE Main & Advanced Sample Paper JEE Main Sample Paper-6

  • question_answer
    Output characteristic of n-p-n transistor in CE configuration is shown. From the characteristic curve determine the current gain at \[{{V}_{CE}}=1V.\]

    A)  30                                         

    B)  32

    C)  28                                         

    D)  40

    Correct Answer: A

    Solution :

    Current gain is denned as, \[\frac{\Delta {{I}_{C}}}{\Delta {{I}_{B}}}\}\]constant \[{{V}_{CE}}\] Current gain at \[{{V}_{CE}}=1V\]is \[\frac{(4.5-3)mA}{(50)\mu A}\]                               \[=\frac{1.5\times {{10}^{3}}}{50}=30\]


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