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5 questions
The diagram shows a magnet beside a current-carrying wire.
The current in the wire is directed upwards.
In which direction will the force exerted on the wire be directed to?
A
B
C
D
The diagram shows an electron travelling into a magnetic field generated by two magnets.
What will be the force exerted on the electron the moment it enters the magnetic field?
downwards
into the page
out of the page
upwards
The diagram shows two wires A and B. Wire A is on a balance while wire B is hung above wire A while being connected to an external circuit.
Wire A has current flowing in it.
When the switch closes, the reading on the balance increases.
Which of the following describe the direction of current in the wires A and B
wire A leftwards, wire B leftwards
wire A rightwards, wire B leftwards
wire A leftwards, wire B rightwards
wire A rightwards, wire B rightwards
Each diagram shows the cross section through two parallel current-carrying wires.
The current direction has been indicated on each wire.
Which of the following shows the direction of the force exerted on the wires?
The diagram shows three current-carrying wires A, B and C. B is in the midpoint between A and C.
The direction of current in wire B is indicated in the diagram accordingly.
Wire B experiences a force rightwards.
Which of the following options is a possible configuration of the amount of current and direction in wires A and C?
A
B
C
D
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