D3 Magnets

Question 1

Solenoid

Answer 1

is a coil of wire carrying an electrical current.

Question 2

Hysteresis Loop

Answer 2

A curve formed by materials showing flux density as a magnetizing force is increased, decreased, increased in opposite direction, then returned to zero

Question 3

Flux

Answer 3

Lines of force of a magnetic or electrostatic field

Question 4

Coercive force

Answer 4

the amount of magnetizing force needed to remove residual magnetism

Question 5

Permeability

Answer 5

A unit noting the ability of a material to establish lines of magnetic flux

Question 6

Reluctance

Answer 6

the opposition of a material to establish magnetic lines of flux

Question 7

How would one increase the amperage as the be readable by a clamp-on ammeter

Answer 7

By forming loops around one arm of the clamp and dividing the readout by the number of turns/loops

Question 8

If you see a dot current is ___ and an X means current is flowing ____

Answer 8

Towards, Away Remember the arrow analogy, Feathers (x) shooting away
Tip (.) shooting towards

Question 9

Explain the right hand rule

Answer 9

thumb points in the direction of the force
middle points in direction of current (. or X)
index points in the direction of the magnetic field