Question

On applying a uniform magnetic field on a current-carrying coil the coil rotates in such a way that its plane

• A. becomes perpendicular to magnetic field
• B. becomes parallel to magnetic field
• C. makes an angle of ${45}^o$ with the magnetic field
• D. makes any angle with the magnetic field

Answer 1

The correct option is A becomes perpendicular to magnetic field

On applying a uniform magnetic field on a current-carrying coil, the lines of force are at right angle to the plane of coil. Hence, the coil rotates in such a way that its plane becomes perpendicular to magnetic field.