EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

The diagram shows four permanent magnet arranged to form a square.

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Draw a second diagram in which the four magnet are arranged in a square so that each magnet attract the two other magnet to which is closest.

Important Questions on Magnetism

EASY
Upper Secondary: IGCSE
IMPORTANT
An electromagnet is a coil of wire through which a current can be passed. State three ways in which the strength of the electromagnet can be increased.
EASY
Upper Secondary: IGCSE
IMPORTANT
An electromagnet is a coil of wire through which a current can be passed. An electromagnet can be switched on and off. Suggest one situation where this would be an advantage over the constant field of a permanent magnet. 
EASY
Upper Secondary: IGCSE
IMPORTANT
What is the difference between a hard magnetic and soft magnetic material? Explain which you would choose for a permanent magnet.
EASY
Upper Secondary: IGCSE
IMPORTANT
Explain which material (hard magnetic material or soft magnetic material) you would choose for a permanent magnet ?
EASY
Upper Secondary: IGCSE
IMPORTANT
Explain which material (hard magnetic material or soft magnetic material) you would choose for the core of an electromagnet?
EASY
Upper Secondary: IGCSE
IMPORTANT

A solenoid has a magnetic field similar to that of a bar magnet.

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The diagram shows a bar magnet and a solenoid arranged so that they repel one another. Copy the diagram, leaving some space around it. Label the poles of the solenoid.

EASY
Upper Secondary: IGCSE
IMPORTANT

A solenoid has a magnetic field similar to that of a bar magnet.

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Add the field lines to your diagram to represent the magnetic field of the bar magnet and the solenoid.

EASY
Upper Secondary: IGCSE
IMPORTANT

Magnet A and B, shown in the diagram, attract each other.

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The S pole of magnet A has been marked. On a copy of this diagram, mark the polarities of other poles, using the letters N or S.