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What is cut off voltage...

What is cut off voltage

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The minimum negative potential given to the anode of a photo cell for which the photoelectric current becomes zero is called cut off voltage or stopping potential.
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What is plot a graph how for a given photosensitive material cutt off voltage and threshold frequency are related ?

The instantaneous voltage from an AC source is given by E = 300 sin 314 t. What is the rms voltage of the source ?

Knowledge Check

  • If sympathetic nerve supply to heart is cut off, the heartbeat will_____.

    A
    Increase
    B
    Decrease
    C
    Show no change
    D
    All of these

  • What is the voltage gain in CE amplifier when input resistance is 3 ohm and the resistance is 24 ohm and beta =60?

    A
    8.4
    B
    2.4
    C
    480
    D
    4.8

    • Similar Questions

    Explore conceptually related problems

    (i) The peak voltage of an AC supply is 300 V. What is its rms voltage ? (ii) The rms value of current in an AC circuit is 10 A. What is the peak current ?

    The photoelectric cut-off voltage in a certain photoelectric experiment is 1.5 V . Calculate the maximum kinetic energy.

    The photoelectric cut-off voltage in a certain experiment is 1.5 V. Does the maximum kinetic energy of emitted photoelectrons is 2.4xx10^(-9)J ? (Write .Yes. or .No.)

    The photoelectric cut-off voltage in a certain experiment is 1.5 V. Does the maximum kinetic energy of emitted photoelectrons is 2.4xx10^(-9)J ? (Write .Yes. or .No.)

    A rectangular loop of sides 8 cm and 2 cm with a small cut is moving out of a region on uniform magnetic field of magnitude 0.3 T directed normal to the loop. What is the voltage developed across the cut, if velocity of loop is 1cms^(-1) in a direction normal to the (i) longer side ? (ii) shorter side of the loop ? For how long does the induced voltage last in each case ? Use the concept of motional emf as wire loop is moving normal to the magnetic field.

    A carrier wave of peak voltage 16 V is used to transmit a message signal. What is the peak voltage of the modulating signal in order to have a modulation index of 50%?

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