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A magnetic field,
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Important Questions on Magnetic Effect of Current
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A proton and an -particle moving with the same velocity enter into a uniform magnetic field which is acting normal to the plane of their motion. The ratio of the radii of the circular paths described by the proton and -particle, respectively, is,
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A very long straight wire carries a current I. At the instant when a charge +Q at point P has velocity , as shown, the magnetic force on the charge is :
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In Thomson mass spectrograph, , then the velocity of un-deflected electron beam will be,
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A charge moves in a region, where electric field and magnetic field both exist. Then the force on it is
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An electric field and a magnetic field applied on a proton move with velocity . It goes un-deflected through the region if,
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In a region, constant and uniform electric and magnetic fields are present. Both fields are parallel. A charge is released from rest. Then, the path of particle is,
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A wire carrying a current is placed perpendicular to a long wire carrying a current . The direction of force on will be,
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A current carrying wire AC is placed in uniform transverse magnetic field then the force on wire AC :-
