MCQ on Class 12 Physics Chapter 4 Moving Charges and Magnetism with Answers

We have compiled the MCQ Questions for Class 12 Chemistry Chapter 4 Moving Charges and Magnetism with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 12 Physics with Answers on a daily basis and score well in exams. Refer to the Moving Charges and Magnetism Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation.

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Moving Charges and Magnetism Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Physics Chapter 4 Moving Charges and Magnetism with Answers

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1. Consider a wire carrying a steady current, l placed in a uniform magnetic field B perpendicular to its length. Consider the charges inside the wire. It is known that magnetic forces do no work. This implies that

 
 
 
 

2. The nature of parallel and anti-parallel currents are

 
 
 
 

3.  
A charged particle will not move with a constant velocity in a region where in,

 
 
 
 

4. A current loop placed in a non-uniform magnetic field experiences

 
 
 
 

5. Isoclinic lines are the lines joining places with :

 
 
 
 

6. Which of the following is not correct about cyclotron?

 
 
 
 

7. An electron is projected along the axis of a circular conductor carrying the same current. Electron will experience

 
 
 
 

8. The conversion of a moving coil galvanometer into a voltmeter is done by

 
 
 
 

9. A strong magnetic field is applied on a stationary electron. Then the electron

 
 
 
 

10. The radius of the trajectory of a charged particle in a uniform magnetic field is proportional to the:

 
 
 
 

11. Two a-particles have the ratio of their velocities as 3 : 2 on entering the field. If they move in different circular paths, then the ratio of the radii of their paths is

 
 
 
 

12. Which one of the following is correct statement about magnetic forces?

 
 
 
 

13. A wire of length 2 metre carries a current 1 ampere, is bent to form a circle. The magnetic moment of the coil is :

 
 
 
 

14. A current carrying power line carries current from west to east. Then the direction of the magnetic field 2 m above it is :

 
 
 
 

15. A cubical region of space is filled with some uniform electric and magnetic fields. An electron enters the cube across one of its faces with velocity v and a positron enters via opposite face with velocity -v. At this instant,

 
 
 
 

16. The sensitivity of a tangent galvanometer can be increased by increasing:

 
 
 
 

17. Earth’s magnetism was discovered by:

 
 
 
 

18. If a charged particle moves through a magnetic field perpendicular to it

 
 
 
 

19. The conversion of a moving coil galvanometer into a voltmeter is done by

 
 
 
 

20. Circular loop of radius 0.0157 m carries a current 2 A. The magnetic field at the centre of the loop is :

 
 
 
 

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