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Chapter 15: Quiz 1

Quiz by Namerah Ali

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10 questions
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  • Q1
    The induced current in a circuit can be increased by
    moving loop faster
    all of the above
    replacing the loop by a coil of many turns
    using strong magnetic field
    60s
  • Q2
    emf is induced due to change in
    current
    charge
    electric flux
    magnetic flux
    60s
  • Q3
    Identify the phenomenon by which induced emf can be generated
    By moving magnet
    by rotating a coil in it
    by moving a coil towards a stationary magnet
    All of them
    60s
  • Q4
    If we increase the resistance of the circuit containing the coil, the emf induced will be
    reduced
    same
    none
    increased
    60s
  • Q5
    The direction of induced current is always so as to oppose the change which causes the current is called:
    Lenz's Law
    mutual induction
    Faraday's law
    none
    60s
  • Q6
    Lenz's law deals with
    resistance
    magnitude of emf
    direction of induced current
    direction of emf
    60s
  • Q7
    Inductance is measured in
    weber
    volt second
    Henry
    volt / ampere
    60s
  • Q8
    When a loop of wire is moved across the magnetic field, the current produced in it is called
    induced current
    alternating current
    photoelectric current
    direct current
    60s
  • Q9
    If velocity of a conductor moving through a magnetic field is zero, the motional emf will be
    qBl
    qvB
    zero
    -vBL
    60s
  • Q10
    According to Faraday’s law of electromagnetic induction, the induced emf is directly proportional to:
    induced current
    rate of change of magnetic flux
    magnetic flux
    none
    60s

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