Question $11$ pts

Magnets have a magnetic field because of $...$

Group of answer choices

a flow of an electrical current

A flow of magnetic charges

An accumulation of magnetic charges

a net electrical charge

Flag question: Question $2$

Question $21$ pts

A wire carrying an electrical current $,$ experiences a force if placed in an external magnetic field $.$ What is the direction of the force $?$

Group of answer choices

perpendicular to both the axis of the wire and the direction of the B field

parallel to the direction of the wire

parallel to the direction of the magnetic field

downwards

Flag question: Question $3$

Question $31$ pts

A loudspeaker works because of the interaction of a permanent magnet and $...?$

Group of answer choices

a current carrying coil of wire

electrostatic charges

gravity

magnetic charges

Flag question: Question $4$

Question $41$ pts

Magnetic field lines describe:

Group of answer choices

The direction the needle of a compass magnet would align

the direction of flow of magnetic charges

The direction that a positively charged particle would move

the direction of magnetron radiation flow