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:2
electric current
Learning outcomes Self assessment
Excellent Good I need
support
1. Demonstrate the characteristics of the magnetic
field lines for a straight wire carrying current.
2. Find the factors that affect the magnetic field of a
straight wire carrying current.
3. Apply right hand rule to find the direction of
magnetic field.
4. Apply the equation of “magnetic field
of long, straight wire” to solve problems.
Science Department – Physics
Page 1 of 7
, Session1
Question1:
Explain the reason for the change in the direction of the compass needle when placed
near a wire through which an electric current flow?
Because the electric current produces a magnetic field around the wire, that effects on
the compass needle.
Question2:
What are the characteristics of the magnetic field lines for a current-Carrying wire?
1- The field lines form closed loops around the current-carrying wire.
2- The loops are perpendicular to the current-carrying wire.
Question3:
What are the factors that effect on the magnetic field of a straight, wire carrying
current?
1- The strength of the magnetic field directly proportional to the current in the wire.
2- The strength of the magnetic field inversely proportional to the distance from the
wire.
Question4:
How is the strength of the magnetic field around a current-carrying wire related to
the amount of current and the radial distance from the wire?
- The magnetic field produced by a current in a wire is proportional to the current and
inversely proportional to the radial distance from the wire.
Session2
Question1:
- How is the direction of the magnetic field around a current-carrying wire
determined?
To find the direction of the magnetic field due to a current-carrying wire, point the
thumb of your right hand along the wire in the direction of the current, I. Your
fingers will then curl around the wire in the direction of the magnetic field.
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:2
electric current
Learning outcomes Self assessment
Excellent Good I need
support
1. Demonstrate the characteristics of the magnetic
field lines for a straight wire carrying current.
2. Find the factors that affect the magnetic field of a
straight wire carrying current.
3. Apply right hand rule to find the direction of
magnetic field.
4. Apply the equation of “magnetic field
of long, straight wire” to solve problems.
Science Department – Physics
Page 1 of 7
, Session1
Question1:
Explain the reason for the change in the direction of the compass needle when placed
near a wire through which an electric current flow?
Because the electric current produces a magnetic field around the wire, that effects on
the compass needle.
Question2:
What are the characteristics of the magnetic field lines for a current-Carrying wire?
1- The field lines form closed loops around the current-carrying wire.
2- The loops are perpendicular to the current-carrying wire.
Question3:
What are the factors that effect on the magnetic field of a straight, wire carrying
current?
1- The strength of the magnetic field directly proportional to the current in the wire.
2- The strength of the magnetic field inversely proportional to the distance from the
wire.
Question4:
How is the strength of the magnetic field around a current-carrying wire related to
the amount of current and the radial distance from the wire?
- The magnetic field produced by a current in a wire is proportional to the current and
inversely proportional to the radial distance from the wire.
Session2
Question1:
- How is the direction of the magnetic field around a current-carrying wire
determined?
To find the direction of the magnetic field due to a current-carrying wire, point the
thumb of your right hand along the wire in the direction of the current, I. Your
fingers will then curl around the wire in the direction of the magnetic field.
Science Department – Physics- Page 2 of 7
