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# NCERT Solutions Class 10 Science - Chapter 12 Magnetic Effects Of Electric Current - PDF Download

JEE Mains & Advanced

NCERT solutions for class 10 science chapter 12 Magnetic effects of electric current help students to improve their self-confidence in preparing for the examinations. The best reference material for science subject for board exam and various entrance exams. NCERT solutions for class 10 science, chapter 12 Magnetic effects of electrical current are commonly used by all students during their exam preparation. Our subject experts explain all the questions posed in the NCERT books. These NCERT solutions for Class 10 science are prepared by eSaral’s expert team after extensive research. These solutions are available in plain language so that the students can learn the whole concept at a higher level.

Magnetic effect of electric current is also known as electromagnetic effect. It is a branch of physics that mainly focuses on the study of electromagnetic force, electromagnetic particles, electromagnetic fields. In this topic, you will learn more about the Magnetic field and electric current, as well as some interesting experiments.

## NCERT Solutions for Class 10 Science Chapter 12 Topics

Section Name

Topic Name

12

Magnetic effects of electric current

12.1

Magnetic field and field lines

12.2

Magnetic field due to a current-carrying conductor

12.3

Force on a current carrying conductor in a magnetic field

12.4

Domestic electric circuits

12.1 Magnetic field and field lines: A magnetic field is an area in the universe around a magnet or moving electric charge where magnetic forces are felt. A magnetic field is a vector field because it has both a magnitude and a direction. A magnetic field line is an imaginary line that describes the direction and magnitude of the magnetic field.

12.2 Magnetic field due to a current-carrying conductor: Ampère's law describes the magnetic field around a conductor that carries current. When electricity is flowing through a conductor, this creates a magnetic field around it which is known as electromagnetism.

Subtopics covered in the section 12.2 Magnetic field due to a current-carrying conductor:

12.2.1 Magnetic field due to a current through a straight conductor

12.2.2 Right hand thumb rule

12.2.3 Magnetic field due to a current through a circular loop

12.2.4 Magnetic field due to a current in a solenoid

12.3 Force on a current carrying conductor in a magnetic field: The magnetic force is a force that occurs when a conductor carrying a current is exposed to a magnetic field. This force results from the interaction of the magnetic field with the circulating charges within the conductor. It is commonly referred to as the magnetic effect or the lorentz force.

12.4 Domestic electric circuits: Domestic electrical circuits are the wiring systems inside your home that power your appliances, gadgets, lights, and other stuff. They're used to make sure your electricity is being sent around safely and effectively.

## Key Features of Class 10 Science NCERT Solutions Chapter 12

• A compass needle looks like a tiny magnet with one end pointing north and the other south. There's a magnetic field around the needle that tells you how strong the magnet is.

• The magnetic field is represented by field lines, which show the direction of the magnetic field at a certain point. Where the field is stronger, the field lines are closer together. The magnetic field comes from a metal wire that carries an electric current.

• The field lines around the wire are made up of concentric rings whose direction is determined by the right hand rule.

• The magnetic field that a conductor experiences when an electric current flows through it depends on its shape. The magnetic field that a solenoid carrying a current experiences is similar to the magnetic field that a bar magnet experiences.

• An electromagnet is made up of a core of a soft iron wrapped around a coil of insulated copper wire.

• When a conductor carrying a current is in a magnetic field, it experiences a force. If the direction of the magnetic field and the direction of the current are perpendicular to each other, the force acting on a conductor is perpendicular to both directions and is given by Fleming's left-hand rule.

• The AC electric power supply in our homes is powered by 220 V with a 50 Hz frequency. One of the wires in the supply is insulated with red insulation, known as live wire, while the other is insulated with black insulation, known as neutral wire. The difference between the two wires is 220 V.

• The third wire in the supply is the earth wire, which is insulated with green insulation and is connected to a metallic body deep within the earth. This wire is used for safety purposes, as it ensures that any current leakage to the metallic body does not cause any severe shock to the user.

• The most important safety device is the fuse, which is used to protect the circuits from short-circuit or overloading.

## Benefits of Downloading the PDF of NCERT Solutions Class 10 Science Chapter 12 Magnetic Effects and Electric Current

• eSaral’s NCERT solutions provide comprehensive answers to all the questions posed in the relevant NCERT textbooks.

• eSaral’s subject experts have conducted extensive research on each topic to ensure that the answers are accurate and relevant to the students.

• These solutions are designed to be easy and straightforward for students to understand, and will be beneficial for those who are preparing for Olympiad, CBSE, or other board and competitive exams.

• Detailed answers are provided for each question to assist students in their preparation.

• Practical activities and laboratory work will help you understand the subject better.

#### Frequently Asked Questions

Question 1: What is electromagnetic induction?

Answer 1: Electromagnetic induction (EMF) is the action of a changing magnetic field on a conductor, resulting in the generation of an EMF or voltage across the conductor. This process is the foundation of generator and transformer operation.

Question 2: What are the applications of electromagnetic induction in everyday life?

Answer 2: Induction is used in things like transformers to switch voltage levels, generators to generate electricity, microphones and speakers to make sound, and induction cooktops to cook.

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