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NEET Sample Paper NEET Sample Test Paper-44

  • question_answer
    Turn ratio in a step-up transformer is 1: 2, if a Leclanche cell of 1.5V is connected across the input, then the voltage across the output will be:

    A) 0.1V                

    B) 1.5V   

    C) 0.75V                           

    D) zero

    Correct Answer: C

    Solution :

    For a thin prism [A assumed to be small] \[\operatorname{i}+e=A+\delta \] \[\operatorname{Since} it emerges normally \therefore  e = 0\] \[i=A+\delta \]   (i) for minimum deviation \[\delta =\left( \mu -1 \right)A\]     (ii) Using (i) and (ii) \[\operatorname{i} = A + \left( \mu -1 \right)A\] \[\operatorname{i} = A +\mu A - A\] \[1 =\mu A\]


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