AP Physics: Electromagnetic Induction

A ring is originally oriented 30-deg from the magnetic field. Which of the following would increase the flux?

• increasing the field

• reversing the direction of the field

• increasing 30-deg to 90-deg

• decreasing 30-deg to 0-deg

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NGSS.HS-PS2-5

Which coil will have the largest flux?

• A

• B

• C

• D

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

A field of constant B = 0.5 T is enclosed by a ring with radius 2m. Which of the following is true?

• Flux is 2π Webers and has counterclockwise current

• Flux is 2π Webers and has no current

• Flux is 0 Webers and has clockwise current

• Flux is 0 Webers and has no current

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

A magnet is dropped through a copper tube. If the magnet were dropped outside the tube, it would hit the ground ________ as it did through the tube.

• in more time

• in less time

• in the same amount of time

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NGSS.HS-PS2-1

A magnet is dropped through a copper tube. This results in all of the following EXCEPT ________.

• currents flowing in the copper tube

• an induced EMF in the copper tube

• an induced magnetic field inside the copper tube

• a frictional force between the magnet and the tube

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NGSS.HS-PS2-5

All of the following will result in an induced current in the loop EXCEPT

• A

• B

• C

• D

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NGSS.HS-PS2-5

If the magnetic field were increased from B = 0.5 T to 1.0T, the flux through the loop would

• increase

• decrease

• remain the same

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NGSS.HS-PS2-5

If the magnetic field were increased from B = 0.5 T to 1.0T, the induced field in the loop would be directed _______

• clockwise

• counterclockwise

• into the page

• out of the page

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

If the magnetic field were increased from B = 0.5 mT to 1.0mT, the induced current in the loop would be directed _______

• clockwise

• counterclockwise

• into the page

• out of the page

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

A moveable rod makes contact along two rails with a lightbulb attached. As the rod is moved to the right, the magnetic flux _________.

• increases

• decreases

• stays the same

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NGSS.HS-PS2-5

NGSS.HS-PS3-5