Ch4 1/2

Question 0

Ammeter

Answer 0

Measure Current in a series

Question 1

Air core transformer

Answer 1

Two coils in proximity facilitating induction

Question 2

Artificial permanent magnet

Answer 2

Made from Steel alloy. ALNICO, composed aluminum, nickel, and cobalt

Question 3

Brush

Answer 3

Devise attached to slip rings

Question 4

Capacitor

Answer 4

Device accumulating and storing electrical charge

Question 5

Closed core transformer

Answer 5

2 coils filled iron core for induction

Question 6

Coercivity

Answer 6

Energy causing reorientation of dipoles

Question 7

Commutator ring

Answer 7

Rings divided in half

Question 8

Diamagnetic

Answer 8

Materials weakly repelled by magnets

Lead, bismuth, beryllium

Question 9

Dielectric

Answer 9

Insulation between 2 plates in capacitor

Question 10

Diode

Answer 10

Rectifying semiconductors p-n junctions

Question 11

Dynamometer

Answer 11

Measure AC In electro magnets

Question 12

Electromagnet

Answer 12

Magnet Produced by moving Electric current

Question 13

Electromagnetic relay

Answer 13

Protect radiographer from shock

Question 14

Farad

Answer 14

Unit of Capacitance

Question 15

Ferromagnetic

Answer 15

Highly permeable

Iron,cobalt,nickel

Question 16

Fleming hand rules

Answer 16

Relationships between electricity and magnetism

Question 17

Flux density

Answer 17

Field strength arc in which lines of Flux are

Question 18

Full wave rectification

Answer 18

Conversion of half of incoming electron flow

Question 19

Galvanometer

Answer 19

Measure DC when magnets r used

Question 20

Gauss (g)

Answer 20

Unit for measuring flux density

Question 21

Generator

Answer 21

Mechanical to electrical energy aka dynamo

Question 22

Half wave rectification

Answer 22

AC converted DC self rectification

Question 23

Hysteresis loss

Answer 23

Energy expended as AC demagnetizes and re magnetizes Aka LAGGING LOSS

Question 24

I2 R Loss

Answer 24

Power loss from resistance

Copper loss

Question 25

Inductive reactance

Answer 25

AC ability 2 switch directions

Question 26

Lines of flux

Answer 26

Magnetic dipoles oriented to create magnets

Lines of force & magnetic field