WorksheetsAP Physics: Electromagnetic Induction
Total questions: 16
Worksheet time: 31mins
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
Which coil will have the largest flux?
A
B
C
D
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
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
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
All of the following will result in an induced current in the loop EXCEPT
A
B
C
D
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
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
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
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
A moveable rod makes contact along two rails with a lightbulb attached. As the rod is moved to the right, a magnetic field is induced _________.
counterclockwise
clockwise
into the page
out of the page
A moveable rod makes contact along two rails with a lightbulb attached. As the rod is moved to the right, a current is induced _________.
counterclockwise
clockwise
into the page
out of the page
A moveable rod makes contact along two rails of zero resistance with a lightbulb attached. As the rod is moved to the right with constant velocity, the light bulb's brightness would
get dimmer and dimmer
turn off
stay constant
increase rapidly
As the bar travels to the right, current is induced in the counterclockwise direction. What is the direction of the induced field?
clockwise
counterclockwise
into the page
out of the page
In this picture, a bar slides to the right. The flux is _______ and field is induced ________.
increasing, out of the page
increasing, into the page
decreasing, out of the page
decreasing, into the page
The magnetic field B gets weaker over time, taking 2 seconds to go to zero. During the two seconds, the current through the resistor is directed ________ and _________.
downwards (-y), decreasing in magnitude
downwards (-y), constant magnitude
upwards (+y), decreasing in magnitude
upwards (+y), constant magnitude
