ELECTRICITY AND MAGNETISM

Question 1

A danish scientist and chemist

Answer 1

Hans Christian Oersted

Question 2

he accidentally discovered that an electric current can produce a magnetic field

Answer 2

Hans Christian Oersted

Question 3

Physicists that discovered that electric fields can produce a magnetic field

Answer 3

Joseph Henry & Michael Faraday

Question 4

A process where changing magnetic field can produce electric current

Answer 4

Electromagnetic induction

Question 5

2 products of electromagnetic induction

Answer 5

induce current, induce electromotive force (emf)

Question 6

Flow of electric charges in a given material

Answer 6

Electricity

Question 7

Attraction of electron

Answer 7

Current

Question 8

occurs when there is flow of charges

Answer 8

Current

Question 9

Dynamic duo

Answer 9

Electricity, magnetism

Question 10

Dynamic duo means:

Answer 10

When there is electric current, there is a magnetic field

Question 11

They remain changing

Answer 11

Dynamic duo

Question 12

Attraction and repulsion

Answer 12

Magnetism

Question 13

Did Joseph Henry and Michael Faraday work independently?

Answer 13

Yes

Question 14

Faraday’s law:

Answer 14

Whenever there is change in the magnetic flux in a circuit, an induced current will be produced

Question 15

Lenz’s law

Answer 15

States that induced current flowing direction so as to oppose the charge causing it

Question 16

Number of lines of forces

Answer 16

Magnetic flux

Question 17

area where we can find the magnet and forces

Answer 17

Magnetic field

Question 18

Force that is produced by magnet

Answer 18

Magnetic flux

Question 19

Unit of magnetic flux

Answer 19

Weber (Wb)

Question 20

Flux per unit area of loop of wire is perpendicular to the field

Answer 20

Magnetic field intensity

Question 21

Magnetic field intensity unit

Answer 21

Tesle (T)

Question 22

It converts mechanical energy to electrical energy

Answer 22

Generator

Question 23

Sometimes called alternator because it alternated current

Answer 23

Generator

Question 24

French scientist that was cited for having the first electric generator in 1832

Answer 24

Hippolyte Pixii

Question 25

2 types of generators

Answer 25

AC generator, DC generator

Question 26

It allows the shift or exchanging of mechanicak and electrical from the movement of nagnetic field

Answer 26

Magnet

Question 27

It holds the armature in place

Answer 27

Slip ring

Question 28

It conducts electrical current

Answer 28

Carbon brush

Question 29

Ring broken into 2 halves insulated from each other

Answer 29

commutator

Question 30

AC meaning

Answer 30

Alternating current

Question 31

DC meaning

Answer 31

Direct current

Question 32

Produces mechanical energy from electrical energy

Answer 32

Motor

Question 33

2 types of motor

Answer 33

DC and AC notor

Question 34

Permanent magnets that are stationary

Answer 34

Stators

Question 35

He invented the first AC motor

Answer 35

Nikola Tesla