NCERT Exemplar Solution for Class 10 Science Chapter-13 Magnetic Effects of Electric Current
The chapter Magnetic Effects of Electric Current introduces students to the fascinating relationship between electricity and magnetism. It explains how electric current produces magnetic fields and how these principles are used in everyday electrical devices. From understanding magnetic field lines around conductors to learning the working of electric motors and generators, this chapter connects scientific theory with practical applications. The NCERT Exemplar Solution for Class 10 Science helps students strengthen conceptual clarity through detailed explanations, reasoning-based answers, and numerical applications. By practicing questions from the NCERT Exemplar Solution, learners improve their analytical thinking and gain confidence in solving board-level problems. These NCERT solutions for class 10also help students understand real-life uses of electromagnetism in appliances, industries, and modern technology.
Find the Exercises PDF of NCERT Exemplar Solution for Class 10 Science Chapter-13 Magnetic Effects of Electric current
Magnetic Field and Field Lines
A magnetic field is the region around a magnet or a current-carrying conductor where magnetic effects can be experienced. The chapter begins with the study of magnetic field lines and their properties. These lines help students visualize the direction and strength of magnetic forces around magnets and conductors.
Students learn that magnetic field lines emerge from the north pole and enter the south pole outside the magnet. Inside the magnet, they move from south to north, forming continuous closed curves. The closeness of field lines indicates the strength of the magnetic field. If the lines are crowded together, the magnetic field is strong. The chapter also explains the magnetic field around a straight current-carrying conductor. When electric current flows through a wire, circular magnetic field lines are produced around it. The direction of these field lines can be determined using the right-hand thumb rule. According to this rule, if the thumb points in the direction of current, the curled fingers show the direction of magnetic field lines.
Students further study the magnetic field produced by a circular loop and a solenoid. A solenoid behaves like a bar magnet when current passes through it and is used in making electromagnets. Electromagnets have wide applications in electric bells, cranes, and medical equipment.
Electromagnetic Force and Electric Motor
The interaction between magnetic fields and electric current forms another important part of the chapter. When a current-carrying conductor is placed in a magnetic field, it experiences a force. The direction of this force can be determined using Fleming’s Left-Hand Rule.
This principle is used in electric motors. An electric motor converts electrical energy into mechanical energy. Motors are commonly found in fans, washing machines, mixers, water pumps, and many industrial machines. The chapter explains the construction and working of a simple electric motor with the help of diagrams and examples. Students also learn about the role of split rings and brushes in maintaining continuous rotation in a motor. Understanding these components helps students connect theoretical knowledge with practical devices used in daily life.
The NCERT Exemplar questions from this section encourage students to apply scientific concepts in different situations. These application-based problems improve understanding and help students prepare effectively for examinations. By practicing such questions, students develop the ability to explain scientific principles logically and accurately.
Electromagnetic Induction and Electric Generator
Electromagnetic induction is one of the most interesting concepts in this chapter. It refers to the process of generating electric current by changing the magnetic field around a conductor. This phenomenon was discovered by Michael Faraday and forms the basis of electric generators.
The chapter explains that when a conductor moves in a magnetic field, current is induced in it. The direction of induced current is determined using Fleming’s Right-Hand Rule. Electric generators work on this principle and convert mechanical energy into electrical energy. Students also learn the difference between direct current (DC) and alternating current (AC). Direct current flows in one direction, while alternating current changes direction periodically. AC is commonly used in homes and industries because it can be transmitted efficiently over long distances.
The chapter further discusses domestic electric circuits and safety measures. Electrical appliances in homes are connected through live, neutral, and earth wires. Safety devices such as electric fuses and circuit breakers prevent damage caused by short circuits or overloading.
This chapter helps students understand how electricity and magnetism are interconnected in modern technology. The exemplar solutions provide detailed explanations that make difficult concepts easier to understand and revise before examinations.