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Faraday law

Quiz by nadine diab

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10 questions
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  • Q1
    According to Faraday's law, the induced electromotive force in a closed loop is equal to the rate of change of
    resistance of the loop
    temperature of the loop
    electric current in the loop
    magnetic flux through the loop
    30s
  • Q2
    Faraday's law of electromagnetic induction states that a change in magnetic field induces a(n)
    emf
    magnetic field
    temperature change
    resistance
    electric current
    30s
  • Q3
    In Faraday's law of electromagnetic induction, the negative sign in the equation indicates the direction of the induced
    temperature change
    emf
    current flow
    magnetic field
    resistance
    30s
  • Q4
    When a magnetic field is changing in a loop of wire, the induced current in the wire flows in a direction that produces a magnetic field that opposes the original change. This is known as
    Faraday's Law
    Ohm's Law
    Ampere's Law
    Lenz's Law
    Coulomb's Law
    30s
  • Q5
    According to Faraday's law of electromagnetic induction, the magnitude of the induced electromotive force is directly proportional to the rate of change of
    voltage
    magnetic flux
    electric current
    current density
    resistance
    30s
  • Q6
    When a coil is rotated in a magnetic field, the induced emf is highest when the coil is at
    45 degrees to the magnetic field lines
    0 degrees to the magnetic field lines
    90 degrees to the magnetic field lines
    180 degrees to the magnetic field lines
    30s
  • Q7
    Which of the following factors affects the magnitude of the induced electromotive force in a coil according to Faraday's law of electromagnetic induction?
    Temperature of the coil
    Material of the coil
    Resistance of the coil
    Rate of change of magnetic field
    Thickness of the coil
    30s
  • Q8
    When a magnetic field is directed into a closed loop of wire, according to Faraday's law, the induced current in the wire will flow in a direction to create a magnetic field that
    enhances the original magnetic field
    has no effect on the original magnetic field
    opposes the original magnetic field
    doubles the original magnetic field
    creates a perpendicular magnetic field
    30s
  • Q9
    In Faraday's law of electromagnetic induction, the induced electromotive force (emf) in a closed loop is directly proportional to the number of
    turns in the loop
    capacitors in the loop
    magnets in the loop
    batteries in the loop
    resistors in the loop
    30s
  • Q10
    In Faraday's law of electromagnetic induction, the negative sign in the induced emf equation indicates that the induced current flows in a direction to oppose the change in
    resistance
    electric field
    magnetic flux
    current
    voltage
    30s

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