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WorksheetsElectromagnetic Induction
Total questions: 10
Worksheet time: 5mins
Electromagnetic induction is the creation of a potential difference (or a current) when an electrical conductor is passed through a (a) field.
How can the size of the induced potential difference be increased?
Increase the speed of the movement
Increase the number of coils
Increase the current
Use a bigger magnet
Use a stronger magnet
If the direction of motion is reversed, the direction of the current...
reverses
stays the same
If there is no relative motion between the magnetic field and the conductor, there is no current induced.
True
False
Select the statements that apply to an alternator.
Creates direct current
Creates alternating current
Has slip rings and brushes
Has a split-ring commutator
AC stands for (a) current.
DC stands for __________ current.
deviating
default
diverging
direct
Dynamos are generators that produce direct current.
True
False
Select the correct voltage graph for a dynamo.
Alternating current is produced in most power stations.
True
False
