NCERT Solutions for Class 12

NCERT Solutions for Class 12 Physics Chapter 7 Free PDF Download

NCERT Solutions for Class 12 Physics Chapter 7 Alternating Current

Physics is a subject that studies the universe and how it works. In addition, it derives formulas on the basis of their functioning. But class 12 physics is quite hard to understand for students. That’s why we prepared these NCERT Solutions for Class 12 Physics Chapter 7 which will direct students through the chapter in an easy manner. Also, our video tutorial explains each topic in simple language with example.

These solutions are pretty easy to understand as our expert teacher has designed them to convey a proper and complete meaning of each topic and formulas of the chapter.

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Download NCERT Solutions for Class 12 Physics here

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CBSE Class 12 Physics Chapter 7 Alternating Current NCERT Solutions

Alternating current refers to the current that changes directions many times after a fixed interval of time. Typically, it relates to power supply.. In this NCERT Solutions for Class 12 Physics Chapter 7, we have described the methods and formulas that help you to realize how current works. Besides, the keywords are also explained in these solutions.

Sub topics covered under NCERT Solutions for Class 12 Physics Chapter 7

7.1 Introduction

This topic outlines the different types of current and how they originate. Also, the topic defines the sine function of the current that is alternating voltage.

7.2 AC Voltage Applied to a Resistor

This topic defines what happens when the resistor comes in contact with the AC current.  Besides, the topic contains several solved questions that help in understanding the current.

7.3 Representation of AC Current and Voltage by Rotating Vectors- Phasors

This topic helps to understand how a rotating vector represents AC current or voltage.

7.4 AC Voltage Applied to an Inductor

This topic defines what happen when an Inductor comes in contact with AC voltage. Also, the topic describes this with the help of some examples.

7.5 AC Voltage Applied to a Capacitor

This topic overviews what happen when an AC current or voltage is applied to a capacitor. Moreover, it describes it functioning with the help of examples.

7.6 AC Voltage Applied to a Series LCR Circuit

This topic defines what happen when the series LCR circuit comes in contact with AC current. This is also explained with the help of examples.

7.6.1 Phasor-diagram solution- This topic defines the functioning of an LCR circuit using Phasor-diagram solution.

7.6.2 Analytical solution- This topic defines the analytical equation that is used for circuits.

7.6.3 Resonance- This topic describes what is resonance and what is its function in the RLC circuit.

  1. Sharpness of resonance

7.7 Power in AC Circuit: The Power Factor

This topic outlines the power of AC circuit that is used to do the work and the noticeable power that is supplied to the circuit.

7.8 LC Oscillations

This topic defines the LC oscillation which works in electric current and the charge on the capacitor circuit undergoes LC oscillations when the capacitor (charged) connects to an inductor.

7.9 Transformers

This topic outlines the functioning of a transformers and how it works. Moreover, the work of the transformer is to increase or decrease the voltage of the altering current.

Summary- It contains the short description of each topic of the chapter. Also, it contains every topic’s formulas.

You can download NCERT Solutions for Class 12 Physics Chapter 7 PDF by clicking on the button below.

NCERT Solutions for Class 12 Physics Chapter 7 Free PDF Download

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