Which of these magnets has the strongest magnetic field?
Important Questions on Magnetic Effects of Electric Current
Label the north pole and south pole of the electromagnet in the diagram.
The digram below shows the magnetic field lines due to a current in a straight conductor.
Something was done to the current because of which the magnetic field lines changed as shown below.
What was done to the current?
Quadrupole magnets consist of groups of four magnets and are used in particle accelerators.
The image below shows four bar magnets configured to produce a quadrupole. The magnetic field lines between the magnets is marked.
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What are the poles of the magnets at P,Q R and S ?
A simplified diagram of an electric motor is as shown. The loop of wire is horizontal in a horizontal magnetic field.
In which direction is the force on side of the wire loop?
An alpha particle enters a uniform magnetic field as shown. The direction of force experienced by the alpha particle is:
