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JEE Main & Advanced Sample Paper JEE Main Sample Paper-16

  • question_answer
    A moving coil ammeter is to be adapted to detect small alternating currents. Which of the diagrams shows how a diode could be connected in order to make the conversion?

    A)                                

    B)  

    C)  

    D)  

    Correct Answer: C

    Solution :

    The current must pass through the meter in the direction + to-only. The diodes in [a] and [b] will not stop the reverse current, so can be eliminated. Remember that a diode conductors in the direction in which the triangle of the symbol is pointing.


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