MEDIUM
NEET
IMPORTANT
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For the given current distribution the magnetic field at point, is
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Important Questions on Magnetic Effect of Current
MEDIUM
NEET
IMPORTANT
current flows through an infinitely long straight wire. The magnetic field produced at a point away from it is
MEDIUM
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IMPORTANT
Two infinite long parallel wires carry equal currents in same direction. The magnetic field at a mid point in between the two wire is :-
MEDIUM
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IMPORTANT
A closely wound flat circular coil of turns of wire has diameter of and carries a current of ampere. Determine the magnetic flux density at the centre of the coil
MEDIUM
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IMPORTANT
Ampere current is flowing through a long straight wire. Due to this a field of is produced, then distance of the point from the axis of the wire is
HARD
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IMPORTANT
Radius of a current carrying coil is . The ratio of magnetic field at an axial point which is distance away from the centre of the coil to the magnetic field at the centre of the coil
MEDIUM
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IMPORTANT
When the current flowing in a circular coil is doubled and the number of turns of the coil in it is halved, the magnetic field at its centre will become :-
EASY
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IMPORTANT
Which of the following statement is not true; magnetic field at the centre of current carrying loop :-
MEDIUM
NEET
IMPORTANT
A circular coil of radius R carries an electric current. The magnetic field due the coil at a point on the axis of the coil located at a distance r from the center of the coil, such that r >> R varies as :-
