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Physics Test 14...

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  • Question 1
    4 / -1

    In a half-wave rectifier, the minimum number of diode(s) used

  • Question 2
    4 / -1

    Minimum resistance of a diode occurs in

  • Question 3
    4 / -1

    Find the value of current in the figure, if junction diode is ideal.

  • Question 4
    4 / -1

    The relation between number of free electrons (n) is a semiconductor and temperature (T) is given by

  • Question 5
    4 / -1

    A piece of copper and other of germanium are cooled from the room temperature to 80 K, then

  • Question 6
    4 / -1

    If the temperature of the source is increased the efficiency of a Carnot engine

  • Question 7
    4 / -1

    A charged particle moves through a magnetic field in a direction perpendicular to it. Then the: –

  • Question 8
    4 / -1

    A square loop of side 22 cm is changed to a circle in time 0.4 s. The magnetic field present is 0.2 T. The emf induced is:

  • Question 9
    4 / -1

  • Question 10
    4 / -1

    A radio wave has a maximum magnetic field induction of 10–4 T on arrival at a receiving antenna. The maximum electric field intensity of such a wave is -

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