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NCERT Solutions Class 12 Physics Chapter 6 – Electromagnetic Induction
6.1
Ans – The direction of induced current in various scenarios can be determined by applying Lenz’s rule.
(a) Direction of induced current will be along qrpq.
(b) Direction of induced current will be along prq along yzx.
(c) Direction of induced current will be along yzxy.
(d) Direction of induced current will be along zyxz.
(e) Direction of induced current will be along xryx.
(f) No current is induced because field lines are lying in the plane of closed loop.
6.2
Ans – (a) Lenz’s law states that the electromagnetic field (EMF) that is induced attempts to generate an electrical current that is opposite to the transformation within the magnetic flux that generated it. Since the length of the wire is growing into a circular shape, the field of magnetic attraction (which acts towards the bottom) would then exert force radiating on every section of the cable.
The current that was induced is supposed to be flowing in a manner that can generate an upward-facing magnetic field (pointing in the viewer’s orientation). As a result, the pull that acts on the copper wire is going to move toward the inside, meaning that the current that is produced is going to travel throughout the c-band across a counter clockwise direction inside the circuit.
(b) When the shape of a circular loop is deformed into a narrow straight wire, there is a reduction in the magnetic flux penetrating the surface. As a result, the induced current passes the path abcd in accordance with Lenz’s law.
6.3
6.4
6.5
6.6
(b) The direction of the induced current can be found by using Fleming’s right-hand thumb rule; in this case, the current flows from West to East.
(c) The eastern end of the wire will show a higher potential in this case.
6.7
6.8
Class 12 Physics Chapter – 6 Electromagnetic Induction Overview
Electromagnetic induction isn’t simply a science idea; it also powers the generators, transformers, and wireless chargers we use every day. This chapter explains how a changing magnetic field makes electric current and how Faraday’s and Lenz’s laws describe this process. Our Electromagnetic Induction NCERT Solutions make these hard-to-understand topics easy to understand, one step at a time.
But students often have a hard time grasping generated EMF, sign standards, and the flow of current. These topics aren’t only full of theory; they also need reasoning and regular practice. That’s why our answers break down each derivation explicitly, utilize diagrams to show how things move and change, and give solved examples that reflect the CBSE’s way of grading. Because of this, you’ll feel more sure of yourself when you answer questions at the board level and in competitions.
The NCERT syllabus for 2025 has gotten rid of unnecessary material and incorporated more assignments that require students to solve problems using graphs, build up coils in real life, and use what they learn in real life. Eddy currents, energy loss, and how electric generators work are some of the themes that are currently getting increasing attention. Our new Electromagnetic Induction NCERT Solutions go over all of these changes in great detail so that you are always up to date with the latest needs.
In short, this chapter connects magnetic theory to electrical use. Our Electromagnetic Induction NCERT Solutions can help you learn important formulas, visual tricks, and ways to solve problems, whether you’re getting ready for boards or the JEE. If you practice often, you won’t just know how induction works; you’ll also be able to describe and use it clearly and confidently.
FAQs – Electromagnetic induction Class 12 Chapter – 6 NCERT
This is a common issue! Always remember, Lenz’s Law helps you figure out the direction. Our solutions use diagrams and sign checks to clarify this.
Use Faraday’s Law to calculate the amount of induced EMF. Then, apply Lenz’s Law to determine its direction. We walk you through this process with guided examples.
Rather than memorize blindly, understand that flux = B × A × cosθ. Our solution highlights when and how angle and motion affect the flux change.
It’s usually due to missing steps or improper reasoning. That’s why our solutions follow CBSE’s marking scheme exactly, helping you present answers properly.
Designed to fit your board exam requirements, Cogniks.com offers correct, simple solutions for Electromagnetic Induction.