Magnetism

A magnetic field exerts a force of 3N on a 0.1cm length of wire carrying a current of 3A. What force would be exerted on a 1cm length of wire carrying the same current? Include the unit

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

By what factor does the force on a wire change if the current is doubled, the length is cut in half, and the magnetic field is four times greater

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A 2.0 m long wire carrying 10 A of current moves through an 6.0 T magnetic field. What is the magnetic force acting on the wire?

• 10 N

• 120 N

• 0.5 N

• 2 N

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Two long parallel wires carry currents in opposite directions. The top wire carries a current to the left, while the bottom wire carries a current to the right. The wires are not touching. Do the wires attract each other or repel?

• Attract

• Repel

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A 2 C charge moving at 15 m/s enters into a magnetic field of strength 5 T. What is the maximum force experienced by this charge?

• 150 N

• 150 N into the page

• 360 N

• 360 N out of the page

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A 5 C charge moving at 6 m/s toward the bottom of the page encounters a 12 T magnetic field pointed toward the right of the page. What is the magnetic force acting on the charge?

• 150 N

• 150 N into the page

• 360 N

• 360 N out of the page

Tags

NGSS.HS-PS3-5

A 5 C charge moving at 3 m/s toward the right of the page encounters an unknown magnetic field. The charge experiences a force of 30 N upwards. What is the magnetic field strength on the charge?

• 450 T right

• 2.0 T out of the page

• 2.0 T into the page

• 450 T left

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A positive charge moving toward the right of the page encounters an unknown magnetic field. The charge experiences a force up the page. What direction is the magnetic field?

• into the page

• out of the page

• up

• down

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A 2 coulomb charge moves to the right at 55 m/s. If it enters a magnetic field of 20 Tesla which points to the left, what is the magnitude of the force acting on the charge? include the unit

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

F = qvB If the speed and charge double, what happens to the magnetic force?

• halves

• remains the same

• doubles

• quadruples

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5