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NCERT CBSE CLASS 12 PHYSICS CHAPTER WISE MCQ

This Quiz is a MCQ (Multiple Choice Questions and Answers) type focus on NCERT/ CBSE Class 12 Physics covering Chapter 1 Electric Charges and Fields topic. This is chosen from most authorized and best reference books of NCERT and CBSE. This MCQs help in various competitive exam like JEE Main, JEE Advanced, WBJEE, NEET, VITJEE, JENPAS UG, SMFWBEE etc.

1. 
The surface considered for Gauss’s law is called

2. 
The Gaussian surface for calculating the electric field due to a charge distribution is:

3. 
The value of charge q at the centre of two equal and like charges Q so that the three are in equilibrium is:

4. 
When placed in a uniform field, a dipole experiences:

5. 
Two similar spheres having +Q and -Q charges are kept at a certain distance. F force acts between the two. If at the middle of two spheres, another similar sphere having +Q charge is kept, then it experiences a force in magnitude and direction as

6. 
A charge Q is divided into two parts of q and Q – q. If the coulomb repulsion between them when they are separated is to be maximum, the ratio of Q/q should be

7. 
The electric field intensity due to an infinite cylinder of radius R and having charge q per unit length at a distance air r (r > R) from its axis is

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8. 
The magnitude of electric field intensity E is such that, an electron placed in it would experience an electrical force equal to its weight is given by

9. 
In Fig. (i) two positive charges q2 and q3 fixed along the y-axis, exert a net electric force in the +x direction on a charge q1 fixed along the x-axis. If a positive charge Q is added at (x, 0) in figure (ii), the force on q1 is

Physics MCQs for Class 12 with Answers Chapter 1 Electric Charges and Fields 12

10. 
Which of the following statement is correct? The electric field at a point is

11. 
Consider a region inside which, there are various types of charges but the total charge is zero. At points outside the region

12. 
Which of the following statements is not true about Gauss’s law?

13. 
A metallic shell having inner radius R1 and outer radii R2 has a point charge Q kept inside the cavity. Electric field in the region R1 < r < R2 where r is the distance from the centre is given by

14. 
Four charges are arranged at the comers of a square ABCD, as shown. The force on the charge kept at the centre O is

Physics MCQs for Class 12 with Answers Chapter 1 Electric Charges and Fields 13

15. 
Consider three point objects P, Q and R. P and Q repel each other, while P and R attract. What is the nature of force between Q and R?

16. 
A body is positively charged, it implies that

17. 
If an object possesses an electric charge, it is said to be electrified or … A … When it has no charge, it is said to be … B … Here, A and B refer to

18. 
In annihilation process, in which an electron and a positron transform into two gamma rays, which property of electric charge is displayed?

19. 
What happens when some charge is placed on a soap bubble?

20. 
The figure here shows electric field lines. The electric field strength at P1 is E1 and that at P2 is E2 If distance between P1, P2 is r, then which of the following statement is true?

MCQ Questions for Class 12 Physics Chapter 1 Electric Charges and Fields with Answers 1

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