A coil of wire is connected to a galvanometer.When the coil is rotated in a magnetic field,the galvanometer records a current.The current results because
A)the coil acts like a transformer.
B)the free electrons in the conductor experience a force when they move in the magnetic field.
C)an electromagnetic wave is generated.
D)the wire is ferromagnetic.
E)none of the above.

Question

Quizplus · Accepted Answer

When a conductor (in this case, the coil of wire) is moved in a magnetic field, the free electrons in the conductor experience a force (known as the Lorentz force) which causes them to move and generate a current. This phenomenon is known as electromagnetic induction. The galvanometer is used to detect and measure this induced current.

A Coil of Wire Is Connected to a Galvanometer