# NCERT Class 12 Chapter 4 Physics Moving Charges and Magnetism MCQ | Questions & Answers

NCERT Class 12 Chapter 4 Physics Moving Charges and Magnetism MCQ | Questions & Answers: If you guys are searching for an article that could help you to test your knowledge about NCERT Class 12 Chapter 4 Physics Moving Charges and Magnetism, then you are at the right place. Take an exam from the below provided MCQ Quiz and at last check your final score to know how well you know about Moving Charges and Magnetism.

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1. Biot-Savart law indicates that the moving electrons (velocity v) produce a magnetic field B such that

2. A charged particle is moving in a cyclotron, what effect on the radius of path of this charged particle will occur when the frequency of the ratio frequency field is doubled?

3. According to Gauss’s theorem in magnetism, surface integral of magnetic field intensity over a surface (closed or open) is always:

4. A current carrying circular loop of radius R is placed in the x-y plane with centre at the origin. Half of the loop with x > 0 is now bent so that it now lies in the y-z plane.

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

6. Tesla is a unit of:

7. An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true?

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

9. In a cyclotron, a charged particle

10. Current flows through uniform, square frames as shown in the figure. In which case is the magnetic field at the centre of the frame not zero?