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Worksheetssolenoid and toroid
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Amperes circuital law holds for
a)
unsteady current
b)
steady current
c)
any type of current
d)
variable current
2.
Ampere’s circuital law is analogous to a law in electrostatics.That law is
a)
Gauss’s law
b)
Kirchhoff’s law
c)
Faraday’s law
d)
Coulomb’s law
3.
The mathematical expression for Amperes circuital law:
a)
∮Bdl = μ0 I
b)
∮Bxdl = μ0 I
c)
∮B.dl = μ0 I
d)
∮Bdl = μ0 I/r
4.
What is the magnitude of magnetic field in empty space of toroid?
a)
µ0nI
b)
µ0nI/2
c)
nI
d)
zero
5.
What is the shape of a magnetic field around a solenoid?
a)
b)
c)
d)
6.
What is a solenoid?
a)
A coil of wire with current flowing through it
b)
A type of bar magnet
c)
A single straight wire
d)
One loop of a wire
7.
If you wrap more coils around an electromagnet, it will become
a)
brighter
b)
stronger
c)
weaker
d)
invisible
8.
What is most likely to happen when the switch is closed?
a)
A magnetic field should be produced
b)
The nail will rust
c)
The battery will explode
d)
The wire will catch on fire
9.
The relationship between electricity and magnetism is called
a)
scary
b)
magnet role reversal
c)
electromagnetism
d)
magneteel
10.
What is the shape of a magnetic field around a bar magnet?
a)
b)
c)
d)
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