electromagnetic fields

What would happen if I move a bar magnet in and out of a coil of copper wire?

• Electric current would disappear 
• The magnet would explode 
• Electric current will flow through the wire
• It would produce a gravitational field

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

what is a solenoid?

• a wire carrying a current

• a magnet eating pizza

• a current carrying coiled wire

how does an electric current produce a magnetic field?

• with friction

• when electricity is in motion

• when electrical charge is in motion

• with force and friction

Current is carried by a long straight wire designated by the black x. Current is flowing into the page. What direction is magnetic field directed?

• out of the page

• into the page

• clockwise

• counterclockwise

A magnetic field is shown directed counterclockwise around a long, straight current-carrying wire. The wire carries current in the ________ direction.

• up (y)

• down (-y)

• into the page (-z)

• out of the page (z)

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which two are true about the electromagnet?

• The magnetic field points down (-y) inside the nail.

• The magnetic field points up (+y) inside the nail.

• The paperclips are attached to the north pole.

• The paperclips are attached to the south pole.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

A solenoid is viewed from the side such that its field is seen going into the page. The current in the solenoid must be traveling ________.

• clockwise

• counterclockwise

• into the page

• out of the page

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following is true about the magnetic field formed inside the solenoid? (choose all applicable)

• It points from left to right.

• It points from right to left.

• The left side of the solenoid is the north pole.

• The right side of the solenoid is the north pole.

If the current is going up on the front side of the coil then what side of the electromagnet is north?

• Up
• Down
• Left
• Right

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Using the right hand rule, B represents the direction of the

• current

• magnetic field