Moving Charges and Magnetism: Class 12 Physics (CBSE) important questions and practice
Moving Charges and Magnetism is chapter 4 of 14 in CBSE Class 12 Physics. Below are the topics the paper draws from, the question types that come up again and again, and a free practice test on this chapter alone.
Topics in this chapter
- Magnetic force on a moving charge and on a current-carrying conductor
- Motion of a charge in a magnetic field: circular path, helical motion
- Biot-Savart law and field due to a circular loop on its axis
- Ampere's circuital law: straight wire, solenoid
- Force between two parallel currents; definition of ampere
- Torque on a current loop; moving coil galvanometer, its conversion to ammeter and voltmeter
What examiners usually ask
- Using the Biot-Savart law derive the expression for the magnetic field at a point on the axis of a circular current loop
- Describe the principle and working of a moving coil galvanometer and explain how it is converted into an ammeter
- A proton enters a magnetic field of 0.5 T perpendicularly with speed 2 x 10^6 m/s; find the radius of its circular path
Exam tip
The circular loop axial field and the galvanometer (with current sensitivity and why increasing sensitivity does not necessarily increase voltage sensitivity) are repeated 5-mark items; also prepare the force between parallel wires to define the ampere.
Moving Charges and Magnetism on other boards and exams
Frequently asked questions
What are the important questions from Moving Charges and Magnetism for CBSE Class 12?
The question types listed above repeat most often in CBSE Class 12 Physics papers for this chapter. Practise them with the chapter test and then attempt them inside a full previous-year paper under time.
Is Moving Charges and Magnetism in the CBSE Class 12 Physics syllabus?
Yes. Moving Charges and Magnetism is part of the current CBSE Class 12 Physics syllabus, as listed on this site from the prescribed textbook.
Can I practise Moving Charges and Magnetism MCQs in Hindi?
Yes. The chapter test and explanations are available in Hindi and English, with an AI doubt solver for any question.