Electromagnetism

Question 1

is a process where a
magnetic field is created by
introducing a current into the
conductor or by producing electricity
with changing magnetic field.

Answer 1

Electromagnetism

Question 2

branch of
Physics that deals with the
electromagnetic force that occurs
between electrically charged particles.

Answer 2

Electromagnetism

Question 3

is a type of physical interaction
that occurs between electrically charged particles.

Answer 3

Electromagnetic force (EMF)

Question 4

is the
combination of all magnetic and electrical forces.

Answer 4

Electromagnetic force (EMF)

Question 5

Any charge in motion induces a

Answer 5

Magnetic field

Question 6

____ creates a magnetic field

Answer 6

Electrons flowing in a wire

Question 7

The electromagnetic force can be(2)

Answer 7

attractive or
repulsive.

Question 8

More loops makes the magnetic field?

Answer 8

Stronger

Question 9

The magnetic field can be
____ by wrapping the coil
of wire around ferromagnetic
material (iron).

Answer 9

.intensified

Question 10

Can travel through anything

Answer 10

EM waves

Question 11

EM are classified according to their (2)

Answer 11

frequency and
wavelength

Question 12

The magnetic field is represented by the
imaginary lines that form ____centered on the wire.

Answer 12

concentric
circles

Question 13

All the magnetic field lines come
together at the___ of the loop
making the magnetic field strong

Answer 13

center

Question 14

A coil of wire is called a

Answer 14

solenoid

Question 15

discovered that electric currents create magnetic fields

Answer 15

Hans Christian Ørsted(Danish
physicist and chemist)

Question 16

•This was the first connection
found between electricity and
magnetism.

Answer 16

electromagnetic induction

Question 17

formulated two laws on the bases of his experiments

Answer 17

Michael Faraday (1831)

Question 18

First Law: “Whenever a conductor are
placed in a______, an
electromotive force (emf) is induced.

Answer 18

varying magnetic field

Question 19

First law: If the conductor circuit is closed, a current is induced which is called ?

Answer 19

induced current.

Question 20

Faraday concluded that an electric current cannot be induced in a circuit merely by presence of magnetic field. It should be a ?

Answer 20

changing magnetic field

Question 21

Second Law: “The magnitude of
the induced emf in a coil is equal
to the ______that
linkages with the coil.”

Answer 21

rate of change of flux

Question 22

The____ is the product of
the number of turns in the coil
and the flux associated with the
coil.

Answer 22

flux linkage

Question 23

proposed a theory of electromagnetic field which has something to do with the space in the
neighborhood of the electric or magnetic bodies

Answer 23

James Clerk Maxwell

Question 24

• It assumes matter in motion, by which the observed
electromagnetic phenomena are produced
• Electromagnetic field is that part of space which contains
and surrounds bodies in electric or magnetic conditions

Answer 24

James Clerk Maxwell theory of electromagnetic field

Question 25

is that part of space which contains
and surrounds bodies in electric or magnetic conditions
(Maxwell, 1864)

Answer 25

Electromagnetic field

Question 26

is that part of space which contains
and surrounds bodies in electric or magnetic conditions
(Maxwell, 1864)

Answer 26

Electromagnetic field

Question 27

are waves that
are created as a result of vibrations between an
electric field and a magnetic field.

Answer 27

electromagnetic waves

Question 28

is a form of energy that is
produced by oscillating electric and magnetic
disturbance, or by the movement of electrically
charged particles traveling through a vacuum or
matter.

Answer 28

Electromagnetic energy

Question 29

The electric field and magnetic field of
an electromagnetic wave are
______(at right angles) to each
other. They are also ______ to
the direction of the EM wave.

Answer 29

perpendicular

Question 30

EM cannot be deflected by_____ nor_____.

Answer 30

electric field; magnetic field

Question 31

EM waves travel at the_____ through empty space.

Answer 31

Speed of light = 3x10^8m/s or 186,000 miles/sec

Question 32

Speed of light =

Answer 32

3x10^8m/s

Question 33

EM waves travel in a form of ?

Answer 33

transverse wave

Question 34

EM are classified according to their ____ and
____.

Answer 34

frequency and
wavelength.