Magnetic Properties and Principles

What is the unit of measurement for magnetic fields?

• Coulomb

• Ampere

• Newton

• Tesla

What creates a tiny bar magnet within an atom?

• Nuclei

• Electrons

• Neutrons

• Protons

What happens to the domains in a ferromagnetic material when it is demagnetized?

• They align in one direction

• They become randomly oriented

• They become larger

• They disappear

What is true about the poles of a bar magnet?

• They can be positive or negative

• They are always together

• They can be isolated

• They can be separated

What should you avoid confusing when studying magnetic and electric forces?

• All of the above

• Magnetic fields with electric fields

• South poles with negative charges

• North poles with positive charges

In which direction do magnetic field lines point outside a magnet?

• From South to North

• From North to South

• In random directions

• They do not point

What is a compass essentially?

• A small bar magnet

• A small electric charge

• A small electric field

• A small gravitational field

What rule is used to determine the direction of the magnetic field around a current-carrying wire?

• Right-hand rule

• Index rule

• Left-hand rule

• Thumb rule

What happens to the magnetic field inside a solenoid when the current is increased?

• It disappears

• It increases

• It remains the same

• It decreases

What is the pattern of the magnetic field outside a solenoid similar to?

• A circle

• A square

• A straight line

• A bar magnet