Electromagnetic induction is best defined as the process by Which a voltage is produced in a conductor When there is:
A) energy produced by the rotating coils.
B) motion around the magnetic fields.
C) motion between the conductor and the magnetic field.
D) motion between the magnetic poles.
Correct Answer:
Verified
Q40: If the cross-sectional area of a magnetic
Q41: Like magnetic poles _.
A)have the same current
Q42: The movable part of the relay is
Q43: Soft iron has a high _.
A)reactance
B)resistance
C)permeability
D)mmf
Q44: An ampere-turn is a unit of _.
A)magnetomotive
Q46: If the number of turns of wire
Q47: If some turns of Wire are removed
Q48: A relay is a device that _.
A)isolates
Q49: An iron core electromagnet has a higher
Q50: Applying an ac voltage to an electromagnetʹs
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