Given below are two statements: 
Assertion (A): Mass of a body decreases slightly when it is negatively charged.
Reason (R): Charging is due to the transfer of electrons.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Electric Charge |
 80%
From NCERT
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Given below are two statements: 
Assertion (A): If electrons in an atom were stationary, then they would fall into the nucleus.
Reason (R): Electrostatic force of attraction acts between negatively charged electrons and positive nucleus.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Coulomb's Law |
 66%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
 
Assertion (A): If the electric field due to a dipole on its axis line at a distance r is E, then the electric field due to a dipole at the same distance at the equatorial line will be E/2.
Reason (R): Electric field due to dipole varies inversely as the square of the distance.
 
In light of the above statements choose the correct answer from the options given below:
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.




 
Subtopic:  Electric Dipole |
 69%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
 
Assertion (A): Electrons in the atom are held due to coulomb forces.
Reason (R): The atom is stable only because the centripetal force due to Coulomb's law is balanced by the centrifugal force.

In the light of the above statements choose the correct answer from the options given below:
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.


 
Subtopic:  Coulomb's Law |
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
 
Assertion (A): A charge q is placed in a cube of side b. The flux associated with the cube is independent of side length.
Reason (R): Gauss's law is independent of the size of the Gaussian surface.
 
In the light of the above statements choose the correct answer from the options given below:
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.




 
 
Subtopic:  Gauss's Law |
 87%
From NCERT
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Given below are two statements: 

Assertion (A): When charges are shared between any two bodies, no charge is really lost but some loss of energy does occur.
Reason (R): Some energy disappears in the form of heat, sparking, etc.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Electric Charge |
From NCERT
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Given below are two statements: 
 
Assertion (A): Work done in moving a charge between any two points in a uniform electric field is independent of the path followed by the charge between these points.
Reason (R): Electrostatic forces are non-conservative.


 

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Electric Field |
 75%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
 
Assertion (A): Electrons move from a region of higher potential to a region of lower potential.
Reason (R): An electron has less potential energy at a point where potential is higher and vice-versa.

In the light of the above statements choose the correct answer from the options given below:
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Electric Field |
From NCERT
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The figure shows some of the electric field lines corresponding to an electric field. The figure suggests: 

1. EA > EB > EC

2. EA = EB = EC

3. EA = EC > EB

4. EA = EC < EB

Subtopic:  Electric Field |
 84%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
 
Assertion (A): If a proton and an electron are placed in the same uniform electric field then they experience different accelerations.
Reason (R): Electric force on a test charge is independent of its mass.

In the light of the above statements choose the correct answer from the options given below:
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Electric Field |
 65%
From NCERT
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