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WorksheetsElectromagnetic Induction Recitation
Total questions: 12
Worksheet time: 7mins
Which of the following best describes electromagnetic induction?
the production of a capacitance across an electrical conductor in a changing magnetic field
the production of a potential difference across an electrical conductor in a changing magnetic field
the production of a resistance across an electrical conductor in a changing magnetic field
the production of an electromotive force across an electrical conductor in a changing magnetic field
Why is a galvanometer used in an electromagnetic induction setup?
to help the current to flow across the conductor
to detect the flow of charges
to provide charges in the conductor
to maintain the amount of current in the conductor
An electromagnetic induction setup can be made without using a galvanometer.
True
False
Which of the following best describes EMF?
can be thought of as the difference between two electrical states in an electric field
the potential difference generated by one or more cells or a changing magnetic field
depends on the magnitude and resistance of the current
force that causes an electric charge to flow
Which of the following can be done to increase the induced current in the conductor?
using a larger magnet
moving the magnet north pole first instead of the south pole
moving conductor instead of the magnet
using a coil instead of a single ring of wire
Which of the following describes Faraday's Law of Induction?
the amount of chemical change being produced by a current at an electrode-electrolyte interface is proportional to the quantity of electricity used
the induced current in a circuit is proportional to the rate of change over time of the magnetic flux through that circuit
the magnitude of induced emf is equal to the rate of change of flux linkages with the coil
The current induced in a circuit due to a change in a magnetic field is directed to oppose the change in flux and to exert a mechanical force that opposes the motion.
Fleming's left-hand rule should be used if one were to create motion, while Fleming's right-hand rule should be used if one were to create electricity.
True
False
A current-carrying conductor can induce current to another conductor.
True
False
Fleming's Hand Rules were originated by John Ambrose Fleming, in the late 19th century, as a simple way of working out the direction of motion in an electric motor, or the direction of electric current in an electric generator.
True
False
What will be the direction of the induced current in a generator when the direction of the motion is upwards while the magnetic flux is to the right?
To the left
Upwards
Towards
Away
What will be the direction of the rotation of the motor's coil if the direction of the magnetic field will be reversed to the left?
It will change to counterclockwise
It will not change anything.
It will not change the direction but will be slower.
It will move forward and backward.
Which of the following best describes a magnetic flux?
The space where magnetism can be experienced
vector field that describes the magnetic influence in magnetic materials
the force between magnets
a measurement of the total magnetic field which passes through a given area
