Which of the following is the factor influencing the magnitude of the force acting on a current-carrying conductor in a magnetic field?
I
The strength of the magnetic field
II
The size of the current flows
III
The length of a current-carrying conductor
Which of the following graphs shows the relationship between force and magnetic field strength?
(A)
(B)
(C)
The diagram shows the arrangement of the apparatus to investigate the magnetic field produced by the current in a circular coil.
What are the directions shown by the pointers of compass X and compass Y when K is switched on?
Compass X
Compass Y
North
South
(D)
Source: Trial SPM Melaka 2019
The diagram shows the arrangement of the apparatus to study the magnetic field pattern generated by the current flowing in a wire coil.
Which diagram shows the correct pattern and direction for the magnetic field that the observer will see?
The diagram shows two bar magnets, \(\text P\) and \(\text Q\), hang freely at both ends of the solenoid.
Which observation is correct when the switch is turned on?
Magnet \(\textbf P\)
Magnet \(\textbf Q\)
Moves away from the solenoid
Moves towards the solenoid
Source: SPM 2013
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