The figure below shows the north and south poles of permanent magnet in which n turn coil of area of cross-section `A` is resting, such that for a current I passed through the coil, the plane of the coil makes an angle with respect to the direction of magnetic field `B`. If the plane of the magnetic field and the coil are horizontal and vertical respectively, the torque on the coil will be
A
` n I AB cos theta`
B
`n I AB sin theta`
C
n I AB
D
none of the above since the magnetic field is radial
Text Solution
Verified by Experts
The correct Answer is:
C
Topper's Solved these Questions
MAGNETIC EFFECT OF ELECTRIC CURRENT
NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos
KINETIC THEORY OF GASES & RADIATION
NIKITA PUBLICATION|Exercise MCQs (Question Given in MHT-CET)|79 Videos
MAGNETISM
NIKITA PUBLICATION|Exercise MCQs|249 Videos
Similar Questions
Explore conceptually related problems
At which position of the plane of the rotating coil with the direction of magnetic field the e.m.f induced in the coil is maximum ?
A flat coil of n turns, area A and carrying a current I is placed in a uniform magnetic field of magnitude B . The plane of the coil makes an angle theta with the direction of the field. The torque acting on the coil is
A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2 T . The normal to the plane of the coil makes an angle of 60^(@) with the direction of the magnetic field. The magnetic flux linked with the coil is
If current through a circular coil flows in clockwise direction, then the direction of magnetic field at the centre of the circular coil is………………to the plane of the coil, directed……………. .
When a coil carrying current is set with its plane perpendicular to the direction of magnetic field, then torque on the coil is……………. .
NIKITA PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT-MCQs (Sensitivity and accuracy of M.C.G.)
