Electromagnetic Induction

Question 1

study of the electromagnetic forces between electrically charged particles that is carried by electromagnetic fields

Answer 1

electromagnetism

Question 2

electromagnetism is composed of _______ fields and _______ fields

Answer 2

electric fields and magnetic fields

Question 3

in 1820, he discovered that a magnetic field is always associated with an electric current

Answer 3

Hans Christian Oersted

Question 4

in 1831, August 29, he discovered electromagnetic induction by his famous induction ring experiment

Answer 4

Michael Faraday

Question 5

it is an instrument for measuring a small electrical current or a function of the current by deflection of a moving coil

Answer 5

Galvanometer

Question 6

changing magnetic field creates?

Answer 6

electric current

Question 7

it is the creation of an electro-motive force by way of a moving magnetic field around an electric conductor

Answer 7

electromagnetic induction

Question 8

states that the E M F induced in a wire is proportional to the rate of the magnetic through the loop

Answer 8

magnetic flux

Question 9

measurement of the total magnetic field which passes through a given area

Answer 9

magnetic flux

Question 10

the electrons keep switching directions, going forward and then backward

Answer 10

alternating current

Question 11

the electrons flow steadily in a single direction

Answer 11

direct current

Question 12

AC is ____ expensive and ____ to generate than DC

Answer 12

less, easy

Question 13

AC can be transmitted across ______ distances without much energy loss, unlike DC

Answer 13

long