StudentAidUnit 8: Magnetism — Mcqs
9th Class Physics · Unit 8: Magnetism
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Multiple Choice Questions (Exercise)
1.Which one of the following is not a magnetic material?
2.Magnetic lines of force:
3.Permanent magnet cannot be made by:
- a soft iron
- b steel
- c neodymium
- d almico
4.Permanent magnets are used in:
5.A common method used to magnetise a material is:
6.A magnetic compass is placed around a bar magnet at four points as shown in figure below. Which diagram would indicate the correct directions of the field?
- a See figure (a)
- b See figure (b)
- c See figure (c)
- d See figure (d)
7.A steel rod is magnetized by double touch stroking method. Which one would be the correct polarity of the AB magnet?
- a N___S
- b S___N
- c N_S_S_N
- d S_N_N_S
8.The best material to protect a device from external magnetic field is:
SLO based Additional MCQs
Magnet
1.If a bar magnet is cut in half it will become:
- a a monopole
- b magnetized
- c the same magnet
- d magnet of less strength
Magnetization Method
2.Which one is the quickest method to magnetize a material?
Magnetic Field
3.Earth's magnetic field intensity is:
Permanent Magnet
4.The cause of the Earth's magnetic field is:
5.Material which is the best one for making a permanent magnet:
Electromagnet
6.Material which is the best one for making an electromagnet:
Shielding of Magnet
7.A sensitive magnetic material is to shielded by the external magnetic field. It should be kept inside a box of:
Magnetic Field Lines
8.Magnetic field lines:
Force on Current Carrying Wire in Same Direction
9.When two current carrying wires in the same direction are placed parallel near each other, due to magnetic field produced by each wire they:
Ferromagnetic Material
10.Which of the following material is ferromagnetic?