Standard
HS-PS2-5: Plan and conduct an investigation to provide evidence that an electric
current can produce a magnetic field and that a changing magnetic field can
produce an electric current.
Topic: Physics Department Grade: 12
- Magnetism and Answer Sheet Term 2 / Week:4
electric current
Learning outcomes Self assessment
Excellent Good I need
support
1.
Describe the magnetic field of a single wire loop.
2. Find the direction of a magnetic field of a
single wire loop.
3. Demonstrate the Force between Wire Loops.
4.
Define the solenoid.
5.
Describe the magnetic field of a solenoid.
6. Solve problems about the magnetic field of a
solenoid.
Science Department – Physics
Page 1 of 7
, Session1
Question1:
What determines whether the force between current-carrying wires is attractive or
repulsive?
Wires with currents in the same direction experience an attractive force.
Wires with currents in opposite directions experience a repulsive force.
Question2:
Region 1 has magnetic field lines that are closely spaced; region 2 has magnetic field
lines that are widely spaced. In which region is the magnitude of the magnetic field
larger? Explain.
Region1: Because the magnetic field lines are closely spaced where the magnetic field is
most intense.
Question3:
A loop of wire is connected to the terminals of a battery, as indicated in the figure.
For the loop to attract the bar magnet, which of the terminals, A or B, should be the
positive terminal of the battery? Explain
Terminal A.
For the loop to attract the bar magnet the
north pole of the corresponding magnet of
this current- carrying loop should be next to
the south pole of the bar magnet. This
means that the magnetic field in the centre
of the loop is towards the bar magnet. By
applying the right-hand rule, the current
pass from A to B
Science Department – Physics- Page 2 of 7
HS-PS2-5: Plan and conduct an investigation to provide evidence that an electric
current can produce a magnetic field and that a changing magnetic field can
produce an electric current.
Topic: Physics Department Grade: 12
- Magnetism and Answer Sheet Term 2 / Week:4
electric current
Learning outcomes Self assessment
Excellent Good I need
support
1.
Describe the magnetic field of a single wire loop.
2. Find the direction of a magnetic field of a
single wire loop.
3. Demonstrate the Force between Wire Loops.
4.
Define the solenoid.
5.
Describe the magnetic field of a solenoid.
6. Solve problems about the magnetic field of a
solenoid.
Science Department – Physics
Page 1 of 7
, Session1
Question1:
What determines whether the force between current-carrying wires is attractive or
repulsive?
Wires with currents in the same direction experience an attractive force.
Wires with currents in opposite directions experience a repulsive force.
Question2:
Region 1 has magnetic field lines that are closely spaced; region 2 has magnetic field
lines that are widely spaced. In which region is the magnitude of the magnetic field
larger? Explain.
Region1: Because the magnetic field lines are closely spaced where the magnetic field is
most intense.
Question3:
A loop of wire is connected to the terminals of a battery, as indicated in the figure.
For the loop to attract the bar magnet, which of the terminals, A or B, should be the
positive terminal of the battery? Explain
Terminal A.
For the loop to attract the bar magnet the
north pole of the corresponding magnet of
this current- carrying loop should be next to
the south pole of the bar magnet. This
means that the magnetic field in the centre
of the loop is towards the bar magnet. By
applying the right-hand rule, the current
pass from A to B
Science Department – Physics- Page 2 of 7
