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FSc. II Physics Chapter 15 Test

Quiz by edkasa physics

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8 questions
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  • Q1
    In case of inductor, energy is stored in the
    gravitational field
    electric field
    potential field
    magnetic field
    60s
  • Q2
    AC generator is based upon
    Faraday's law of electromagnetic induction
    Mutual induction
    Lenz's law
    Maxwell's equations
    60s
  • Q3
    If a coil is wound on an iron core, the magnetic flux in it
    decreases
    increases
    becomes zero
    stays the same
    60s
  • Q4
    With the increase in the speed of motor, the magnitude of back emf
    first increases then decreases
    decreases
    remains same
    increases
    60s
  • Q5
    The only difference in the construction of DC generator and AC motor is
    carbon brushes
    commutator
    coil
    magnetic field
    60s
  • Q6
    Motional emf is given by
    vBL
    qBL
    eBL
    IBL
    60s
  • Q7
    Lenz's law deals with
    magnitude of current
    direction of induced current
    direction of emf
    magnitude of emf
    60s
  • Q8
    If a magnet and a coil are moving with the same speed, will any emf be induced in the coil?
    no
    yes
    60s

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