EASY
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Earn 100

The magnetic field at a distance from the long current-carrying wire is proportional to:-
(a)
(b)
(c)
(d)

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Important Questions on Magnetic Effect of Current
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A cyclotron is used to accelerate charged particles. Then the time period under the influence of magnetic field of a proton:-

MEDIUM
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A proton carrying kinetic energy is moving in a circular path of radius in uniform magnetic field. What should be the energy of an - particle to describe a circle of same radius in the same field ?

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A wire of mass , length and current is balanced in midair by a magnetic field , then find the value of :-

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A toroid with a mean radius , the diameter has turns carrying current . What is the magnetic field outside the toroid?

HARD
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The minimum magnetic dipole moment of an electron in a hydrogen atom is:-

EASY
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Two wires carrying

EASY
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A current loop in magnetic field:

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When a proton is released from rest in a room, it starts with an initial acceleration towards west. When it is projected towards north with a speed it moves with an initial acceleration towards west. The electric and magnetic fields in the room are
