Question

A rectangular current carrying loop, placed in a uniform magnetic field can result in

• A. a generator effect
• B. a motor effect
• C. Both $\left(A\right)$ and $\left(B\right)$
• D. None of these

Answer 1

The correct option is B a motor effect

When a rectangular current carrying loop is placed in a uniform magnetic field, a torque is developed on the wire.
The principle is used in the construction of a motor.
Hence, the above consequence is the cause for the motor effect.