Practice # 1 Magnetism

Front

What is Electrostatic Discharge (ESD)?

Back

A sudden flow of electricity between two electrically charged objects, often causing damage to electronic components.

Front

What are magnetic lines of force also known as?

Back

Magnetic lines of flux.

Front

What does reluctance measure in a magnetic circuit?

Back

The opposition to the flow of magnetic lines through a material.

Front

What effect does adding a soft iron core to a coil have?

Back

It increases the number of magnetic flux lines and their concentration.

Front

What happens to the magnetic field when the electrical current through a conductor stops?

Back

The magnetic field collapses.

Front

Define magnetism.

Back

A physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.

Front

What is a magnetic field?

Back

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

Front

What is the difference between permanent magnets and temporary magnets?

Back

Permanent magnets maintain their magnetism over time, while temporary magnets only exhibit magnetic properties when in a magnetic field.

Front

What is the right-hand rule in magnetism?

Back

A method to determine the direction of magnetic force, current, and magnetic field using the right hand.

Front

What is magnetic flux?

Back

The total magnetic field passing through a given area, measured in webers.