Question

What is the field magnet made of, and what does it provide?

Options

• Steel; alternating current to the external circuit

• Insulated copper wire on an iron core; an external load

• A permanent magnet or electromagnet; a uniform magnetic field \[B\]

• Carbon; continuous electrical contact

Answer 1

The field magnet can be a permanent magnet or an electromagnet. Its function is to provide a uniform magnetic field \[B\].