Chapter 10

Question 0

the field force exerted by electrical charges .may be repulsive of attractive depending on the kinds of charges inteacting

Answer 0

2.electrostatic force

Question 1

all electrical phenomena relating to stationary electrical charges and the forces they exert

Answer 1

1. static electricity

Question 2

law stating that like electrical charges repel and unlike charges attract

Answer 2

3.law of charges

Question 3

SI derived unit of electrical charge equivalent to the charge of 6.24x10^18 electrons and protons

Answer 3

4.Coulomb (C)

Question 4

imaginary lines used to model electric and magnetic fields .density and direction represent the strength and direction of the field force at any point in the field

Answer 4

5.lines of force

Question 5

creation of a charged region on a neutral object exposed to a nearby electrical charge

Answer 5

6.electrical induction

Question 6

object or particle with two electrical or magnetic poles of opposite nature

Answer 6

7.dipole

Question 7

instrument that can detect electrical charge

Answer 7

8.electroscope

Question 8

material through heat and electricity easily flow .good conductors are materials that contain mobile,electrons,most are metals

Answer 8

9. electrical conductor

Question 9

material that does not easily conduct thermal energy or electricity

Answer 9

10. electrical insulator

Question 10

material that allows limited electron flow

Answer 10

11. Semiconductor

Question 11

loss of static charge on an object

Answer 11

12. electrical discharge

Question 12

metal rod attached to the highest point of a building designed to conduct a lightning discharge safely through cables to the ground ;protecting the building from damage

Answer 12

13. lightning rod

Question 13

early charge - storage device that consisted of a jar lined and coated with lead and that use electrical induction

Answer 13

14. Leyden Jar

Question 14

modern charge - storage device used in electrical and electronic curcuits of two or more conductive plates separated by an insulator

Answer 14

15. capacitor

Question 15

continuous flow of electrical charges

Answer 15

16.electrical current

Question 16

hollow,vaccum filled glass device containing electrical plates with opposite charges

Answer 16

17.cathode

Question 17

energy or work that can be done by charges moving between two points of different voltages

Answer 17

18.electrical potential energy

Question 18

flow of positive charges through a conductor or electrolystic solution

Answer 18

19.conventional current

Question 19

electrical current that flows in only one direction

Answer 19

20.direct current

Question 20

complete path for an electrical current

Answer 20

21.electrical current

Question 21

only device that purposely converts electrical energy to another form of energy in an electrical circuit

Answer 21

22.electrical load

Question 22

device that opens or closes a gap in an electrical circuit to control the flow of current

Answer 22

23.switch

Question 23

source of electrical potential consisting of one or more voltaic cells

Answer 23

24.battery

Question 24

device that creates an electrical potential by either releasing electrons through chemical reaction

Answer 24

25.electrochemical cell

Question 25

amount of work required to move a unit charge between two points in a curcuit

Answer 25

26.volt

Question 26

SI unit base unit of electrical current defined as IA = IC/S

Answer 26

27.ampere

Question 27

property of all electrical curcuit elements that impedes the flow of current to some extent

Answer 27

28.electrical resistance

Question 28

electrical circuit component whose specific purpose is to impede current flow

Answer 28

29.resistor

Question 29

law stating that in a DC circuit component of resistance R ,the current through the component is directly proportional

Answer 29

30.Ohm's law

Question 30

unit of elctrical energy used by utilities

Answer 30

31.Kilowatt hour

Question 31

SI unit of electrical resistance

Answer 31

32.ohm

Question 32

electrical circuit of a circuit with single path of current flow through a connected set of electrical

Answer 32

33.series circuit

Question 33

electrical circuit of a circuit with multiple parallel path

Answer 33

34.parallel circuit

Question 34

location in an electrical circuit with a single path of curreny flow

Answer 34

35.short circuit

Question 35

electrical device designed to open the circuit

Answer 35

36.overcurrent protection

Question 36

reusable overcurrent protection device that opens a switch

Answer 36

37.circuit breaker

Question 37

reusable overcurrent protection device that opens a switch when pulsing ,high-current conditions

Answer 37

38.arc-fault interrupter

Question 38

protection device that breaks a circuit ,conductor strip melts

Answer 38

39.fuse

Question 39

fault circuit interrupter electrical device that opens when it senses a path for the current to ground exists

Answer 39

40.ground - fault circuit