
Finding the right approach to Moving Charges and Magnetism can be challenging when the chapter includes laws, derivations, diagrams and numerical problems. Knowing which concepts to prioritise helps you revise more effectively for the Kerala DHSE Plus Two Physics exam.
Kerala Plus Two Physics Moving Charges and Magnetism important questions cover topics such as Lorentz force, Biot–Savart law, magnetic fields and solenoids. Practise these questions, revise key formulas and use the PDF to prepare for the exam.
Most questions in the Kerala DHSE exam come from a small set of topics. The table gives these topics and the kind of question to expect from each one.
|
Topic |
Common Question Type |
|
Lorentz force |
Definition, direction |
|
Biot-Savart law |
Statement, formula |
|
Magnetic field due to a circular coil |
Derivation, numericals |
|
Force between two parallel current-carrying conductors |
Derivation |
|
Motion of a charged particle in a magnetic field |
Short explanation |
|
Solenoid and magnetic moment |
Equation, numericals |
|
Direction of magnetic field around a conductor |
One-word or short answer |
Keep all formulas on one page in your Class 12 Moving Charges and Magnetism question bank notes, so you can revise quickly. Also keep the Kerala Plus Two time table in view while you plan your revision days.
Question 1. What is Lorentz force? (1 mark)
Question 2. Give the equation for the motional EMF induced in a conductor of length l, moving with velocity v in a uniform magnetic field B.
Question 3. A magnet is moved towards a coil, as shown in the figure. Redraw the figure in your answer booklet and mark the direction of current in the coil.
Figure: A bar magnet with its north (N) pole facing a circular coil.
Question 4. State Biot–Savart law.
Question 5. The figure shows two current-carrying conductors. Derive the expression for the force between the conductors.
Figure: Two long parallel conductors P and Q carrying currents i1 and i2, separated by a distance d, with length L marked.
Question 6. The direction of the magnetic field around a current-carrying conductor is given by ______.
Question 7. Derive the expression for the magnetic field on the axis of a circular coil carrying current.
Question 8. A 100-turn, closely wound circular coil of radius 10 cm carries a current of 3.2 A. What is the magnetic moment of the coil?
Question 9. A charged particle enters a uniform magnetic field normally.
(a) What is the path of the charged particle?
(b) Is there any change in the kinetic energy of the charged particle? Explain.
Question 10. Write down the equation for the magnetic field inside a solenoid.
Kerala Plus Two Physics Moving Charges and Magnetism MIQs PDF covers important questions on magnetic fields, Lorentz force, Biot–Savart law, solenoids, and circular motion of charged particles. Download the PDF to practise key questions and revise important concepts for the Kerala DHSE Class 12 Physics exam.
Study without using the internet
A few simple habits can help you score well in this chapter:
Learn the derivations for the circular coil and for the force between two conductors, and write them by hand.
Practise drawing neat figures, as diagram questions like question 3 give easy marks.
Solve numericals daily and always write the unit in the final answer.
Revise the statements of laws, such as Biot-Savart law, word for word.
Study the Kerala Plus Two exam pattern to learn how marks are split between short and long answers.
Understand the Kerala Plus Two grading and marking scheme so you know how step marks are given.
Regular practice of Moving Charges and Magnetism questions can turn this chapter into a scoring area. For clear lessons and doubt support, PW Kerala Board offers online coaching for Class 12 that fits your daily routine, and you can plan ahead using the Kerala Plus Two time table 2027.