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14 questions
A current carrying wire is in a magnetic field. In which direction will there be a force on the wire?
up
down
left
right
In which direction will the force act on this current-carrying wire?
up
down
left
right
What direction does the magnetic force act on this current-carrying wire?
left
right
in
out
The force on this current-carrying wire is upwards, what is the direction of the current in the wire?
from X to Y
from Y to X
Which of these shows the correct magnetic field around a wire carrying current (out of the screen)?
A
B
C
D
Which of these is the correct shape of the magnetic field created by a current-carrying coil?
A
B
C
D
A current-carrying wire has its (conventional) current flowing upwards. The wire is in a uniform magnetic field directed into the page. What direction is the force on the wire
up
down
left
right
A current-carrying wire has its (conventional) current flowing downwards. The wire is in a uniform magnetic field directed out of the page. What direction is the force on the wire?
left
right
into the page
out of the page
A current-carrying wire has its (conventional) current flowing into the page. The wire is in a uniform magnetic field directed to the right (always N to S). What direction is the force on the wire?
up
down
left
right
A current-carrying wire has its (conventional) current flowing out of the page. The wire is in a uniform magnetic field directed downwards (always N to S). What direction is the force on the wire?
up
down
left
right
A current-carrying wire is in a uniform magnetic field (as shown in the diagram). What direction is the force on the wire?
up
down
left
right
A current-carrying wire conveys a current to the right. The wire is in a magnetic field (from left to right). What is the direction of the force on the wire?
into page
out of page
there is no force
An electron, traveling to the right, enters a magnetic field.
The magnetic field is uniform in the region and directed out of the page. What direction is the force that acts on the electron as it enters the field?
up
down
left
right
A current-carrying wire is in a magnetic field (see the diagram). In which direction (indicated by the labelled arrows) is the force acting on the wire?
up
down
left
right
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