Electric Charges and Fields Test

Result

Electric Charges and Fields Test - 1

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

If 109109 electrons move out of a body to another body every second, how much time is approximately required to get a total charge of 1 C on the other body?

A
120 years

B
200 years

C
220 years

D
180 years
Question 2
1 / -0

Electric charge

A
is a property of particles such as atoms,ions,electrons etc

B
is a property of electrons only

C
is a property of neutrons only

D
is a property of protons only

Solution

Explanation:

Every matter is made up of atoms which contains protons, electrons and neutrons.

Protons are +ve charged particles and electrons are - ve charged particles.

Because of electric charge these particles experience a force in electrical fields.
Question 3
1 / -0

Electric charges are of

A
3 types

B
5 types

C
2 types

D
4 types
Solution
Explanation:

Two types
- Positivecharge—deficiency of electrons i.e. if a body loses electrons it will be positive charged.
- Negative charge—excess of electrons i.e. if a body gains electrons it will be negative charged
Question 4
1 / -0

Conservation of charges in tribo electric charging

A
implies both are positively charged

B
implies half are positively charged and other half are neutral

C
implies one is positively charged and the other is negatively charged.

D
implies both are negatively charged

Solution

Explanation:

The triboelectric effect (also known as triboelectric charging) is a type of contact electrification in which certain materials become electrically charged after they come into frictional contact with a different material. Rubbing glass with fur, or a plastic comb through the hair, can build up triboelectricity.

When we charge something with static electricity, no electrons are made or destroyed. No new protons appear or disappear. Electrons are just moved from one place to another. The net, or total, electric charge stays the same. This is called the principle of conservation of charge.

If a glass rod is rubbed with silk, some electrons moves from glass rod to silk no new charge is generated or destroyed.
Question 5
1 / -0

Two positive charges

A
attract each other

B
attract each other at times and repel at other times

C
always attract each other

D
repel each other

Solution

Explanation:

Acc to coulomb's law unlike charges always attract each other while like charges always repel each other so between two positive charges repulsion is working.
Question 6
1 / -0

Charge is quantized means

A
charges can take on any discontinuous value

B
charges can take on any continuous value

C
charge cannot take any arbitrary values, but only values that are integral multiples of the fundamental charge(charge of proton/electron)

D
charges can take on discrete values that are multiples of charge on neutron

Solution

Explanation:

Total charge transferred from one body to other can be calculated by the number of electrons it is known as quantisation of charge given by q=±ne, where n= number of electrons , which should be an integer.
Question 7
1 / -0

Ionization of a neutral atom is the

A
only gain of one or more electrons

B
only gain of one or more neutrons

C
only gain of one or more protons

D
gain or loss of one or more electrons

Solution

Explanation:

It is not possible to remove or add protons to atom, but electron can be added or removed by an atom easily so charge can be developed on an atom by removing or adding electrons, by adding electrons it becomes negative charged ,by removing electrons it becomes positive charged.
Question 8
1 / -0

electrostatic force is

A
force exerted by an electron on a neutron

B
force exerted by one charge on another when the two are at rest in a given frame of reference

C
force exerted by one charge on another when the two are moving in a given frame of reference

D
force exerted by one charge on another when the two are accelerating in a given frame of reference

Solution

Explanation:

Electrostatics means charges at rest,or relatively at rest so this force can be applicable only when charge produce electric field which is constant which is possible only when charges at rest or relatively at rest.
Question 9
1 / -0

Conductors are materials

A
that allow movement of neutrons

B
that allow movement of protons

C
that allow movement of electrons

D
that allow only random movement of electrons

Solution

Explanation:

Conductors are materials that permit electrons to flow freely from particle to particle. An object made of a conducting material will permit charge to be transferred across the entire surface of the object.

In conductors some electrons are unpaired so these electrons can move freely.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Electric Charges and Fields Test - 1

Result

Electric Charges and Fields Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

120 years

200 years

220 years

180 years

Question 2

is a property of particles such as atoms,ions,electrons etc

is a property of electrons only

is a property of neutrons only

is a property of protons only

Solution

Question 3

3 types

5 types

2 types

4 types

Solution

Question 4

implies both are positively charged

implies half are positively charged and other half are neutral

implies one is positively charged and the other is negatively charged.

implies both are negatively charged

Solution

Question 5

attract each other

attract each other at times and repel at other times

always attract each other

repel each other

Solution

Question 6

charges can take on any discontinuous value

charges can take on any continuous value

charge cannot take any arbitrary values, but only values that are integral multiples of the fundamental charge(charge of proton/electron)

charges can take on discrete values that are multiples of charge on neutron

Solution

Question 7

only gain of one or more electrons

only gain of one or more neutrons

only gain of one or more protons

gain or loss of one or more electrons

Solution

Question 8

force exerted by an electron on a neutron

force exerted by one charge on another when the two are at rest in a given frame of reference

force exerted by one charge on another when the two are moving in a given frame of reference

force exerted by one charge on another when the two are accelerating in a given frame of reference

Solution

Question 9

that allow movement of neutrons

that allow movement of protons

that allow movement of electrons

that allow only random movement of electrons

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.