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WorksheetsFaraday's law
Total questions: 10
Worksheet time: 24mins
Name
Class
Date
1.
In 1831 who discovered electromagnetic induction?
a)
Thomas Edison
b)
Nikola Tesla
c)
Michael Faraday
2.
What would happen if I move a bar magnet in and out of a coil of copper wire?
a)
Electric current would disappear
b)
The magnet would explode
c)
Electric current will flow through the wire
d)
It would produce a gravitational field
3.
What is the direction of the induced magnetic field?
a)
Left
b)
Right
c)
Up
d)
Down
4.
Magnetic flux is related to magnetic field strength by the formula
a)
Φ=BA
b)
Φ=BA2
c)
Φ=B/A
d)
Φ=B/A2
5.
Magnetic flux is measured in
a)
teslas
b)
coulombs
c)
webers
d)
farads
6.
If you wrap more coils around an electromagnet, it will become...
a)
brighter
b)
stronger
c)
weaker
d)
invisible
7.
Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s
a)
Third law
b)
Second law
c)
First law
d)
Main law
8.
Which one is a conductor?
a)
wood
b)
iron
c)
plastic spoon
d)
paper
9.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
10.
As the resistance of a circuit increases, the current will...
a)
increase
b)
decrease
c)
stay the same
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