EASY
NEET
IMPORTANT
Earn 100
Assertion : Magnetic force between two charges is generally much smaller than the electric force between them.
Reason : Speeds of charges are much smaller than the free-space speed of light.
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Important Questions on Magnetic Effect of Current
EASY
NEET
IMPORTANT
Assertion : As a direct current passes through a thick metallic conductor, it produces magnetic field only outside the rod.
Reason : Current passes only along the surface of the conductor and not through the interior.
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IMPORTANT
Assertion : For Amperes law , also includes the contribution from current not enclosed by the loop.
Reason : A moving charge produces magnetic field but no electric field.
EASY
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IMPORTANT
Assertion : A moving charged particle gets energy from magnetic field.
Reason : Magnetic force works on moving charged particle.
EASY
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IMPORTANT
Assertion : Magnetic field Of an atom is due to both, the orbital motion a!nd spin motion of electron.
Reason : A moving charge particle produces magnetic field.
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IMPORTANT
Assertion : Magnetic poles are only mathematical assumptions having no real existence. Reason : A charged particle is moved along a magnetic field line. The magnetic force on the particle is perpendicular to its velocity.
EASY
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IMPORTANT
Assertion : Work done by magnetic field on a moving charge is zero.
Reason : Force experienced by a moving charge in a magnetic field is may be zero.
MEDIUM
NEET
IMPORTANT
Assertion : The direction of magnetic moment and orbital angular momentum are opposite to each other for electron.
Reason : Electron is negatively charged.
EASY
NEET
IMPORTANT
Assertion : The direction of magnetic moment and orbital angular momentum are opposite to each other for electron.
Reason : Electron is negatively charged.
