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# NCERT Solutions for Class 12 Physics Chapter 4 Free PDF Download

## NCERT Solutions for Class 12 Physics Chapter 4 Moving Charges and Matter

This article deals with NCERT Solutions for Class 12 Physics Chapter 4. Physics is certainly a complex branch of science. It involves the study of matter and its properties. This difficult subject can be easily dealt with the help of NCERT Solutions. Most noteworthy, minute details are explained with utmost clarity. Furthermore, these solutions have come into existence after extensive research on Physics. NCERT Solutions certainly offer in-depth knowledge of Physics in easy language.

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### CBSE Class 12 Physics Chapter 4 – Moving Charges and Matter NCERT Solutions

NCERT Solutions for Class 12 Physics Chapter 4 deals with Moving charges and Magnetism. Students will learn in this chapter how magnetic field exerts forces on moving charged particles. Furthermore, these moving charged particles are electrons, protons, and current-carrying wires. Moving charges or currents certainly produce a magnetic field in the surrounding space.

### Subtopics covered under NCERT Solutions for Class 12 Physics Chapter

4.1 Introduction

4.2 Magnetic Force

• 4.2.1 Sources and fields
• 4.2.2 Magnetic Field, Lorentz Force
• 4.2.3 Magnetic force on a current-carrying conductor

4.3 Motion in a Magnetic Field

4.4 Motion in Combined Electric and Magnetic Fields

• 4.4.1 Velocity selector
• 4.4.2 Cyclotron

4.5 Magnetic Field due to a Current Element, Biot-Savart Law

4.6 Magnetic Field on the Axis of a Circular Current Loop

4.7 Ampere’s Circuital Law

4.8 The Solenoid and the Toroid

• 4.8.1 The solenoid
• 4.8.2 The toroid

4.9 Force between two Parallel Currents, The Ampere

4.10 Torque on Current Loop, Magnetic Dipole

• 4.10.1 Torque on a rectangular current loop in a uniform magnetic field
• 4.10.2 Circular current loop as a magnetic dipole
• 4.10.3 The magnetic dipole moment of a revolving electron

4.11 The Moving Coil Galvanometer

### NCERT Solutions for Class 12 Physics Chapter 4

This chapter is certainly very important in physics. Furthermore, this chapter has tremendous usage in various fields of science. This is because electricity and magnetism are very important concepts in various fields of science. Moreover, the chapter is essential for becoming engineers.

Below is a brief explanation of the sub-units of chapter 4:

#### 4.1 Introduction –

This part gives a general introduction to the chapter.

#### 4.2 Magnetic Force –

Magnetic force is a force between two moving charges. Most noteworthy, this is the effect exerted upon either charge by a magnetic field created by the other. The minor parts are below:

• 4.2.1 Sources and fields
• 4.2.2 Magnetic Field, Lorentz Force
• 4.2.3 Magnetic force on a current-carrying conductor

#### 4.3 Motion in a Magnetic Field –

Here the magnetic force is perpendicular to the velocity of the particle.

#### 4.4 Motion in Combined Electric and Magnetic Fields –

This sub-unit discusses motion in combined electric and magnetic fields. Above all, the minor parts here are:

• 4.4.1 Velocity selector
• 4.4.2 Cyclotron

#### 4.5 Magnetic Field due to a Current Element, Biot-Savart Law –

This sub-unit involves the relation between the current and the magnetic field it produces.

#### 4.6 Magnetic Field on the Axis of a Circular Current Loop –

this part involves evaluation of the magnetic field due to a circular coil along its axis.

#### 4.7 Ampere’s Circuital Law –

This refers to an alternative and appealing way to express the Biot-Savart law.

#### 4.8 The Solenoid and the Toroid –

These certainly refer to two pieces of equipment which generate magnetic fields. Below are the minor parts:

• 4.8.1 The solenoid
• 4.8.2 The toroid

#### 4.9 Force between two Parallel Currents, The Ampere –

This sub-unit certainly contains an example of two parallel current-carrying conductors. Most noteworthy, this helps in understanding Ampere’s work.

#### 4.10 Torque on Current Loop, Magnetic Dipole –

This part contains information about torque on current loop. Above all, the minor units here are:

• 4.10.1 Torque on a rectangular current loop in a uniform magnetic field
• 4.10.2 Circular current loop as a magnetic dipole
• 4.10.3 The magnetic dipole moment of a revolving electron

#### 4.11 The Moving Coil Galvanometer –

This device is for measuring Currents and voltages in circuits.

You can download NCERT Solutions for Class 12 Physics Chapter 4 PDF by clicking on the button below.

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Yashi

Can you convert it in Hindi

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