Magnetism Quiz

What is a fundamental force like gravity that is directly related to the movement of electrical charge?

• Friction

• Magnetism

• Tension

• Compression

What type of magnet will retain a magnetic field of its own after being subjected to a strong magnetic field?

• Temporary magnet

• Electromagnet

• Permanent magnet

• Non-magnetic material

What causes the magnetic field a material creates?

• The color of the material

• The spin and orbital motion of the electrons

• The temperature of the material

• The size of the material

What will reveal the lines of flux on a permanent magnet?

• Water

• Sand

• Iron filings

• Plastic

What is the relationship between the number of lines of flux and the strength of a magnet?

• Fewer lines mean a stronger magnet

• More lines mean a weaker magnet

• More lines mean a stronger magnet

• The number of lines does not affect the strength

How is flux density measured?

• In Amperes (A)

• In Webers (Wb)

• In Joules (J)

• In Teslas (T)

What happens to the magnetic field when an electric current flows through a conductor?

• It disappears

• It weakens

• It strengthens

• It remains unchanged

According to Maxwell's Right Hand Rule, what does the direction of the thumb represent?

• Direction of magnetic field

• Direction of electric current

• Direction of force

• Direction of rotation

What does the screw rule indicate about the direction of the screw?

• It is opposite to the direction of current

• It is perpendicular to the magnetic field

• It is the same as the direction of current

• It is unrelated to the magnetic field

What happens when currents in adjacent conductors are in opposite directions?

• Conductors will attract

• Conductors will repel

• Conductors will remain stationary

• Conductors will rotate