Magnetism Quiz

Inside a velocity selector, a negative charged ion moves right into a magnetic field pointing up. What is the direction of the electric field?

• up

• into the page

• right

• out of the page

Three charged particles with identical mass and identical speeds enter a detector. Which one is more charged?

• particle 1

• particle 2

• particle 3

• They all have the same charge

A current-carrying loop is seen from above.

Will the loop rotate?

• No

• Yes, bottom part of the loop will go up

• Yes, bottom part of the loop will go down

• No, but net force is not zero and loop will move right

The direction of the magnetic field at point P is...

• zero

• up

• down

• right

A negative particle is moving right. In order to increase its velocity, the magnetic field should point

• right

• up

• into the page

• out of the page

• A magnetic field can't increase the velocity

A dipole is moving right into a magnetic field pointing into the page. The net force acting on the dipole is

• clockwise

• counterclockwise

• up

• down

• there is no net force on the dipole

Three charged particles with identical mass and identical charge enter a detector. Which one is moving faster?

• particle 1

• particle 2

• particle 3

• They all have the same charge