19-Magnetism and matter

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How to prepare for Magnetism and matter for JEE Mains
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Madhavdas
Sir here why here Reason is the correct explanation? Accoding to me the correct answer should be (A)...please clear my doubt
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LiveDoubtClearing
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Madhavdas
Magnetism and Matter Question
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LiveDoubtClearing
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Madhavdas
Solution and Approach of solving
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Sudha kunjeti
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The formula of magnetic dipole moment possessed by a coil of and N turns, area A and carrying current I how can you predicate the polarity of ...?
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rahulp
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The soft-iron is a suitable material for making an electromagnet. This is because soft iron has :
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Abhineet
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A bar magnet having a magnetic moment of $2\times10^5 JT^{- 1}$ is placed along the direction of the uniform magnetic field of magnitude ...?
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Abhineet
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The vertical component of the earth's magnetic field is $6\times10^{- 5} T$ at any place where the angle of dip is 37°. The earth's .... ?
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Abhineet
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At a certain place, the angle of dip is 30° and the horizontal component of the earth's magnetic field is 0.5G. The earth's total magnetic field ....?
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RJVLKHN
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The susceptibility of a paramagnetic material is 99. The permeability of the material in Wb / A - m is:
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RJVLKHN
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In a ferromagnetic material, below the curie temperature, a domain is defined as :
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RJVLKHN
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The magnetic moment of a bar magnet is 0.5 Am². It is suspended in a uniform magnetic field of $8 \times 10 ^{-2}$ T. The work done in rotating ... ?
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RJVLKHN
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A dipole having moment M is placed in two magnetic fields of strength B₁ and B2 respectively. If the dipole oscillates 60 time in 20 s in B₁ and ...?
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RJVLKHN
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Paramagnetic substances :
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RJVLKHN
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A compass needle of oscillation magnetometer oscillates 20 times per minute at a place P of dip 30°. The number of oscillations per minute ..... ?
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Abhineet
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A magnet hung at 45° with a magnetic meridian makes an angle of 60° with the horizontal. The actual value of the angle of dip is:
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Abhineet
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A bar magnet with a magnetic moment of 5 $Am^2$ is initially in a stable equilibrium within a uniform external magnetic field of 0.4 T. The .... ?
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Abhineet
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Two bar magnets oscillate in a horizontal plane in earth's magnetic field with time periods of 3 s and 4 s respectively. If their moments of .... ?
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Abhineet
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A perfectly diamagnetic sphere has a small spherical cavity at its centre, which is filled with a paramagnetic substance. The whole system is ..... ?
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RJVLKHN
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Magnetic materials used for making permanent magnets (P) and magnets in a transformer (T) have different properties of the following .... ?
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RJVLKHN
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A bar magnet is demagnetized by inserting it inside a solenoid of length 0.2 m, 100 turns, and carrying a current of 5.2 A. The coercivity of the ...?
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RJVLKHN
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