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JEE Advanced
IMPORTANT
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A thin rectangular magnet suspended freely has a period of oscillation 4 s. If it is broken into two halves each having half their initial length, then when suspended similarly, the time period of oscillation of each part will be

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Important Questions on Magnetism

EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 59
The unit of pole strength is
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 60
Which of the following properties make soft iron the suitable for core of transformers?
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 61
When the magnetic inclination (dip) was measured at various places on the Earth, in one of the following countries it was found to be zero. Which one was it?
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 62
At a certain place, the angle of dip is 30° and the horizontal component of the Earth's magnetic field is 0.50 oersted. The Earth's total magnetic field (in oersted) is
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 63
A dip circle is so that its needle moves freely in the magnetic meridian. In this position, the angle of dip is 40°. Now the dip circle is rotated so that the plane in which the needle moves makes an angle of 30° with the magnetic meridian. In this position, the needle will dip by an angle
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 64
At a neutral point
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 65
A ferromagnetic material is heated above its Curie temperature. Which one is a correct statement?
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 4 - Magnetism>Objective Problems [ Level 1 ]>Q 66
Which magnetic materials have negative susceptibility?