Magnetic Field Direction

1) A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:

• A. Directed to the right

• A. Directed to the left

• A. Equal to the magnetic field

• In the same direction as the magnetic field

Tags

NGSS.HS-PS2-5

1) The magnetic field inside the coil shown below is directed:

• Into the page

• Out the Page

• To the left

• Towards the bottom of the page

Tags

NGSS.HS-PS2-5

1) In the figure, using the right hand rule around a solenoid, which of the below statements is correct:

• North Pole is 7 and South pole is 8

• North Pole is 8 and South Pole is 7

• There is no magnet, so no north or south

• The current is flowing in the direction from 7 to 8

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

1) There are four coils of wire being used as electromagnets. They all have the same size and are made up of the same material but have a different number of loops. Which coil will produce a magnetic field with the maximum strength when the same amount of current passes through all coils?

• a coil having 25 loops

• a coil having 30 loops

• a coil having 45 loops

• a coil having 50 loops

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

1) A straight wire carries a current inside the paper. What is the direction of the magnetic field at point P?

• Points to the right

• Points to the left

• Points to the top of the page

• Points to the bottom of the page

Tags

NGSS.HS-PS2-5

1) A bar magnet is at rest, next to a fixed electromagnet. In which direction will the bar magnet move when switch S is closed?

• to the left

• to the right

• up the page

• down the page

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Two parallel wires of length 2 m are separated by 40 cm. If the magnetic force between the two wires is 2 ×10^-6 N and the current in the second wire is twice the current in the first one.

1) Which of the following is true concerning the force between the two wires:

• The magnetic force is a repulsion between wires

• The magnetic force is an attraction between the wires

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

1) Two long, parallel wires each carry the same current I in the same direction. Is the total magnetic field at the point midway between the wires:

• Zero

• Directed into the page

• Directed out of the page

• Directed to the left

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

1) A wire carries current I directed to the right as shown in the figure below. What is the direction of the magnetic field generated by the wire at point A?

• To the right

• To the left

• Toward the wire

• Into the page

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5