12th Class Physics Sample Paper Physics Sample Paper-2

  • question_answer
    In the figure given below, a coil B is connected to low voltage bulb L and placed parallel to another coil A as shown
    Explain the following observations.
    (i) Bulb lights up and
    (ii) Bulb gets dimmer if the coil B is moved upwards.



    (i) Bulb lights up due to the induced current setup in coil B because of alternating current in coil A
    (ii) Bulb gets dimmer when the coil B is moved upwards because the flux linked with coil B decreases and induced current also decreases because

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