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How many types of charges are present?

Important Questions on Electrostatics

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Science>Physics>Electrostatics>Electric Charge
Define electric charges on the basis of quantization of charges.
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Science>Physics>Electrostatics>Electric Charge

In bringing an electron towards another electron, the electrostatic potential energy of the system

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Science>Physics>Electrostatics>Electric Charge
When a body is connected to the earth then, electrons from the earth flow into the body. It means before earthing, the body is,
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Science>Physics>Electrostatics>Electric Charge
The mass of proton is
MEDIUM
Science>Physics>Electrostatics>Electric Charge
Static electricity is produced due to-
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Science>Physics>Electrostatics>Electric Charge
To give a charge of 4.8×10-19 C to some object, how many electrons are to be removed from it? (e=1.6×10-19 C)
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Science>Physics>Electrostatics>Electric Charge
Three charges, -q, Q and -q, are placed at equal distances, on a straight line. If the potential energy of the system of three charges is zero, then what is the ratio of Q:q?
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Science>Physics>Electrostatics>Electric Charge
In nature, the electric charge of any system is always equal to
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Science>Physics>Electrostatics>Electric Charge
Identical charges -q are placed at each corner of a cube of side b. Then the electrostatic potential energy of charge +q placed at the centre of the cube will be -
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Science>Physics>Electrostatics>Electric Charge
Which of the following cannot be charged easily by friction?
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Science>Physics>Electrostatics>Electric Charge
A body is charged by rubbing with another. Then its weight 
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Science>Physics>Electrostatics>Electric Charge
Two identical metal spheres A and B have exactly equal masses. A is given a positive charge q coulomb and B is given an equal amount of negative charge. Then
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Science>Physics>Electrostatics>Electric Charge
On charging a soap bubble with negative charge its radius
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Science>Physics>Electrostatics>Electric Charge
For the invariance of the charge, which of the given can be varied?
MEDIUM
Science>Physics>Electrostatics>Electric Charge
The total positive charge in a glass of water containing 180 g of water is approximately:
HARD
Science>Physics>Electrostatics>Electric Charge
A body has a positive charge of 8×10-19 C. It has :
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Science>Physics>Electrostatics>Electric Charge
Three charges, -q, Q and -q, are placed at equal distances, on a straight line. If the potential energy of the system of three charges is zero, then what is the ratio of Q:q?
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Science>Physics>Electrostatics>Electric Charge
If an object has a net charge of -1 C, the number of excess electrons possessed by it is?
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Science>Physics>Electrostatics>Electric Charge
Let A and B are two identical objects of same mass initially are charged electro statically by rubbing against each other. Let A has got a positive charge and B has got a negative charge, then match column I and column II.
  Column I   Column II
(i) Mass of A a. Increases
(ii) Mass of B b. Decreases
(iii) Work function of A               c.                      Is less                       
(iv) Work function of B d. Is more
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Science>Physics>Electrostatics>Electric Charge
Choose the correct answer