Question

Name an instrument which makes use of the principle stated above.

• A. A.C. Motor.
• B. Solenoid
• C. Toroid
• D. D.C. Motor

Answer 1

The correct option is D D.C. Motor

D). D.C Motor

A flat coil ABCD is freely suspended between the pole piece of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.

Coil will turn in anti-clock wise direction, the direction the current in coil is given by Fleming's left hand rule..

So, The instrument which makes use of the principle stated above is D.C Motor.