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12th West Bengal Board
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Electromagnets are made of soft iron because soft iron has

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Important Questions on Magnetic Properties of Matter

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 8
Magnetic susceptibility of a diamagnetic substance
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 9
A paramagnetic substance of susceptibility 3×10-4 is placed in a magnetic field of 4×10-4Am-1. Then the intensity of magnetisation in units of Am-1 is
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 10
A paramagnetic liquid is taken in a $U$ -tube and arranged so that one of the limbs is kept between pole pieces of the magnet. The liquid level in the limb
 
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12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 11

Needles N1,N2 and N3 are made of a ferromagnetic, paramagnetic and diamagnetic substance respectively. Magnet when brought close to them will

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 12
Curie-Weiss law is obeyed by iron
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 13
A frog can be levitated in magnetic field produced by a current in a vertical solenoid placed below the frog. This is possible because the body of the frog behave as
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 14
The magnetic susceptibility of a material of a rod is 499 The absolute permeability of vacuum is 4π×10-7Hm-1 The absolute permeability of the material of rod is
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 15
Among the following properties describing diamagnetism identify the property that is wrongly stated