a)10 points Moving a conducting rod with a constant velocity perpendicular to th

Question

a)10 points Moving a conducting rod with a constant velocity perpendicular to the direction of an external magnetic field results in one end of the rod having a net positive charge and the other end of the rod having a net negative charge.

true or false?

b) Which term applies to the situation where a changing current in a coil of wire induces a back EMF in that same coil of wire?

mutual induction

(self) induction

step-up transformer

step-down transformer

C) 10 points Magnetic flux is measured in ...

(N•m2)/C

Tesla (T)

Weber (Wb)

Henry (H)

Gauss (G)

D) Which of the following examples DOES NOT experience an EMF produced through electromagnetic induction?

Which one of the following actions will NOT result in an induced current?

Drop a magnet through a closed metal loop.

Move a closed metal loop away from a wire carrying a constant current.

Hold a closed metal loop next to a wire carrying a constant current.

Move a closed metal loop towards a wire carrying a constant current.

All of the above choices result in an induced current in the closed metal ring.

Electric Motor

Electric Generator

Electric Guitar Pick-up

Ground Fault Interrupter (GFI)

All of the above experience an EMF created through electromagnetic induction

E) Lenz's law explains that the direction of an induced current in a loop of wire is such that its associated induced magnetic field opposes ...

a change in the electric flux through the loop.

the electric flux through the loop.

the magnetic flux through the loop.

the magnetic field through the loop.

a change in the magnetic flux through the loop.

F) 10 points

Which one of the following actions will NOT result in an induced current?

Drop a magnet through a closed metal loop.

Move a closed metal loop away from a wire carrying a constant current.

Hold a closed metal loop next to a wire carrying a constant current.

Move a closed metal loop towards a wire carrying a constant current.

All of the above choices result in an induced current in the closed metal ring.

mutual induction

(self) induction

step-up transformer

step-down transformer

Explanation / Answer

a) True

b) Option B) Self induction

C) Option c) Weber

D) Option C) Hold a closed metal loop next to a wire carrying a constant current

E) Option C) the magnetic flux througn the loop

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