Electrostatics

Question 1

Which of the following devices uses the concept of Electrostatics?

Accepted Answer

Photocopier

Question 2

What is Electrostatics?

Accepted Answer

The study of stationary electric charges

Question 3

Which shows quantisation of charge?

Accepted Answer

q = ne

Question 4

Electric field lines

Accepted Answer

all of the above

Question 5

Two positive charges next to each other will do which of the following according to the laws of electrostatics?

Accepted Answer

repel

Question 6

What is the value of electric field at axial point of an ELECTRIC DIPOLE?

Accepted Answer

2KP/r3

Question 7

Electrostatics are caused by...

Accepted Answer

Movement of negative charges (electrons)

Question 8

Electrostatics are, things that relate to stationary electric charges or fields as opposed to electric currents.

Accepted Answer

True

Question 9

Which has the greatest magnetic flux

Accepted Answer

a

Question 10

What is a coulomb?

Accepted Answer

The international system of units unit of electric charge.

Question 11

State one use that is not needed by electrostatics.

Accepted Answer

Normal painting.

Question 12

The unit of charge is the:

Accepted Answer

coulomb

Question 13

Electric field strength is defined as...

Accepted Answer

Force per unit positive charge

Question 14

What is the law of electrostatics ?

Accepted Answer

Opposite charges attract each other and the same charges repel each other.

Question 15

Direction of electric field

Accepted Answer

D

Question 16

Conservation of charge means that:

Accepted Answer

all the above

Question 17

A dipole is...

Accepted Answer

a separation of opposite charges

Question 18

What is the net force on an electric dipole in an electric field?

Accepted Answer

zero

Question 19

Which Picture Represents Electrostatics?

Accepted Answer

Top Left

Question 20

What is the potential energy on an electric dipole in an electric field?

Accepted Answer

zero

Question 21

3. Quantisation of charge implies

Accepted Answer

charge, which is a fraction of a coulomb is not possible.

Question 22

The flux through the loop would be zero IF

Accepted Answer

it was completely horizontal OR it was oriented in the plane

Question 23

What causes an electric dipole?

Accepted Answer

one positive and one negative

Question 24

If torque acting inside electric field due to deflecting dipole is pE then,

Accepted Answer

θ = 90

Question 25

Which of the following devices uses the concept of Electrostatics?

Accepted Answer

Photocopier

Question 26

Electrostatics is the study of charges in motion

Accepted Answer

False

Question 27

Which way does dipole moment point?

Accepted Answer

toward positive charge

Question 28

True or False: Electrostatics is the study of electricity at rest

Accepted Answer

True

Question 29

Acharged particle undergos a 2N force + an electricfield of strength 5NC-1 What is the charge

Accepted Answer

10

Question 30

What is your PHYSICS teacher's name?

Accepted Answer

JIBIN K XAVIER

Question 31

Quantisation of charge was first experimentally proved by

Accepted Answer

Millikan

Question 32

What is the unit of electric field strength?

Accepted Answer

N/C

Question 33

An electric field has

Accepted Answer

both of the above

Question 34

What is an electron?

Accepted Answer

Negatively charged particle of an atom

Question 35

Which of these is NOT a use of electrostatics?

Accepted Answer

Overcoming air resistance

Question 36

Electric field direction is defined in terms of:

Accepted Answer

A small positive test charge

Question 37

What is electric field?

Accepted Answer

The force applied on a unit charge

Question 38

The direction of the electric field will always be...

Accepted Answer

Away from a positive charge

Question 39

Electric flux is a vector quantity

Accepted Answer

False

Question 40

ELECTRIC POTENTIAL is a vector quantity.

Accepted Answer

False

Question 41

The charge of an electron is

Accepted Answer

-1.6×10^-19. C

Question 42

The total electric charge of the universe is:

Accepted Answer

constant

Question 43

The study of electricity at rest is electrostatics?

Accepted Answer

True

Question 44

What is a charge?

Accepted Answer

causes force when in an electromagnetic.

Question 45

what are electrostatics used for?

Accepted Answer

photocopying

Electrostatics

Questions 45

Electrostatics

Questions 45