Fields

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Front

What is the real-world application of magnetic fields?

Back

Magnetic Resonance Imaging (MRI) is a real-world application of magnetic fields used in medical imaging.

Front

What is an electric field?

Back

An electric field is a region around a charged particle where other charged particles experience a force.

Front

What is the direction of the electric field lines around a positive charge?

Back

Electric field lines point away from a positive charge.

Front

What is the direction of the electric field lines around a negative charge?

Back

Electric field lines point towards a negative charge.

Front

What is a solenoid?

Back

A solenoid is a coil of wire that produces a magnetic field when an electric current passes through it.

Front

What is the direction of the magnetic field inside a solenoid?

Back

The magnetic field inside a solenoid is parallel to the axis of the solenoid.

Front

What happens to the force on a positive test charge in an electric field?

Back

The force experienced by a positive test charge is directed away from the positive source charge.

Front

What is the difference between electric fields and magnetic fields?

Back

Electric fields are produced by stationary charges, while magnetic fields are produced by moving charges.

Front

What is a gravitational field?

Back

A gravitational field is a region of influence surrounding a mass where other masses experience a force of attraction.