CBSE Class 12 Physics Magnetic Effects of Electric Current And Magnetism Worksheet

Official Class 12 Physics Worksheets: Chapter 04 Moving Charges and Magnetism

Review targeted practice sets for Class 12 Physics Chapter 04 Moving Charges and Magnetism. Built according to official educational guidelines for the 2026-27 academic year, these downloadable worksheets support daily revision and core concept reinforcement.

Chapter-wise Practice Material: Chapter 04 Moving Charges and Magnetism

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Magnetic Effects of Electric current and Magnetism
 
SECTION A CONCEPTUAL AND APPLICATION TYPE QUESTIONS
 
1 Is it necessary for every magnetic field configuration to have a north and south pole? Justify. 
 
2 State one qualitative difference between electric field lines and magnetic field lines. 
 
3 Why a cyclotron cannot accelerate i) a neutron ii) an electron? 
 
4 A moving charged particle enters a magnetic field and emerges out from it .Will it kinetic energy i)I ncrease ii)decrease or iii) remain unchanged ? (sample paper)
 
5 Why the kinetic energy of a charged particle in a magnetic field is unchanged? 
 
6 A charged particle of charge q enters a uniform magnetic field B, with a velocity v experiences a force F, identify a minimum of two pair of perpendicular vectors among the parameters mentioned. (repeated question)
 
7 A circular loop carries a current of I in clockwise direction, draw a diagram to show the coil and magnetic field lines associated with it.
 
8 Mention two factors by which the current sensitivity of a moving coil galvanometer can be increased? (2001)
 
9 An electron beam projected along + x-axis, experiences a force due to a magnetic field along +y axis.what is the direction of magnetic field?
 
10 What is the path of a charged particle moving in a magnetic field in a direction i) parallel ii) at an acute angle iii) perpendicular to the magnetic field?
 
11 An α particle and a proton enter a uniform magnetic field with same speed in the perpendicular direction, compare the radii of their circular paths.
 
12 An α particle and a proton enter a uniform magnetic field with same speed in the perpendicular direction, compare the ratio of their time periods.
 
13 A charge of 8μC moving with a velocity of (2i +3j)m/s enters in a magnetic field of (6i +9j)T.Find the force acting on the charge.
 
14 Three identical specimens of nickel ,aluminium, and antimony are placed in a uniform magnetic field. Draw the modifications in the field lines in each case.
 
15 You are given two identical looking bars A and B. One of them is a bar magnet ,while the other is an iron bar.How will you distinguish them without using any other material?
 
16 What happens to the pole strength and magnetic dipole moment of a bar magnet if it is cut into two pieces i) along its length ii) transverse to its length?
 
17 What is the effect on the magnetization of Antimony when it is cooled? 1(2006 S)
 
18 What should be the orientation of a magnetic dipole in a uniform magnetic field so that its potential energy is i ) maximum ii ) minimum?
 
19 Which among the following i ) nickel ii) aluminium iii) antimony can become a super conductor when cooled to a very low temperature ?
 
20 State the principle of working of a galvanometer.
A galvanometer of resistance G is converted into a voltmeter to measure upto V volts by connecting a resistance R1 in series with the coil. If a resistance R2 is connected in series with it, then it can measure upto V/2 volts. Find the resistance, in terms of R1 and R2, required to be connected to convert it into a voltmeter that can read upto 2 V. Also find the resistance G of the galvanometer in terms of R1 and R2. (2015)
 
21 a)State Ampere’s circuital law. Use this law to obtain the expression for the magnetic field inside an air cored toroid of average radius ‘r’, having ‘n’ turns per unit length and carrying a steady current I.
 
b) An observer to the left of a solenoid of N turns each of cross section area ‘A’ observes that a steady current I in it flows in the clockwise direction. Depict the magnetic field lines due to the solenoid specifying its polarity and show that it acts as a bar magnet of magnetic moment m = NIA.


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Download CBSE Practice Material: Class 12 Physics Chapter 04 Moving Charges and Magnetism

Chapter Practice Questions for Class 12 Physics

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Are these Physics Class 12 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 12 Physics Magnetic Effects of Electric Current And Magnetism Worksheet includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 12.

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