Objective questions of alternating current This assignment (Objective questions of alternating current),provide the important objective questions of the chapter alternating current ,which is important for the students preparing for class-12th board examination or , other competitive examinations (JEE/NEET) Before to solve this assignment (Objective questions of alternating current), student should solve the assignment of objective… Continue reading Objective questions of alternating current

# Tag: electromagnetic induction and alternating current

## Objective questions of electromagnetic induction

Objective questions of electromagnetic induction- This assignment contains Objective questions of electromagnetic induction, which will help the students to prepare for class 12th board examination and other competitive exams like JEE/NEET. Before to solve this assignment students has to solve assignment of magnetic effect of current, to solve the questions of magnetic effect of current… Continue reading Objective questions of electromagnetic induction

## LC-oscillation

OSCILLATION IN AN LC – CIRCUIT LC- oscillation —- An LC circuit consists an inductor and a capacitor connected in parallel . Its another name is tank circuit. Working – At t= 0 – – capacitor is first charged . The whole energy is stored in the capacitor which is U= ½ CV2 , at… Continue reading LC-oscillation

## PHASOR DIAGRAM

PHASOR DIAGRAM- PHASORS AND PHASOR DIAGRAM- The co-planar vectors which represents sinusoidal time varying quantities like alternating current or alternating voltage are known as phasor and the graphical representation of these quantities for the ac circuit is known as phasor diagram. In another words we can say when AC or alternating voltage represented as rotating… Continue reading PHASOR DIAGRAM

## MUTUAL INDUCTANCE OF TWO COAXIAL SOLENOID

MUTUAL INDUCTANCE OF TWO COAXIAL SOLENOID In this topic we will derive the expression for coefficient of mutual induction or mutual inductance of two coaxial solenoid MUTUAL INDUCTION OF TWO COAXIAL SOLENOID– Let us consider two coaxial solenoid P1P2 and S1S2 (as shown in figure). Let their common length is ‘l’ with cross-sectional area A … Continue reading MUTUAL INDUCTANCE OF TWO COAXIAL SOLENOID

## MUTUAL INDUCTION

Mutual induction- In this topic students will study what is mutual induction and coefficient of mutual induction / mutual inductance? And what is the unit of mutual inductance Mutual induction- Let us consider two coils placed near to each other closely . One of the coil carries the battery is the primary coil and the… Continue reading MUTUAL INDUCTION

## SELF-INDUCTION OF LONG SOLENOID

SELF-INDUCTION OF LONG SOLENOID SELF-INDUCTION OF LONG SOLENOID this topic is important for the class 12th board examination Self-inductance of long air-cored solenoid question may asked as – what do you mean by the term self-induction ? Find expression for the self-inductance of long air cored solenoid . Self-inductance of long air-cored solenoid – Suppose… Continue reading SELF-INDUCTION OF LONG SOLENOID

## SELF-INDUCTION

Explain the term self-induction of a coil Self – Induction – It is the property of an electric circuit or coil by virtue of which it opposes any change of flux or current in it by inducing a current in itself is called self- induction. In another words we can say “self-induction is the inertia… Continue reading SELF-INDUCTION

## Faraday’s law of electromagnetic induction

Faraday’s law of electromagnetic induction Electromagnetic induction – As we know when electric current passes through a conductor then magnetic field developed across the conductor , first discovered by Oersted . But Michael Faraday found its converse is also possible i.e. Whenever magnetic field changes around a coil ( and hence magnetic flux linked across… Continue reading Faraday’s law of electromagnetic induction

## Assignment for short answer type questions of electromagnetic induction and alternating current

Assignment for short answer type questions of electromagnetic induction and alternating current this Assignment for short answer type questions of electromagnetic induction and alternating current contain all short type questions which is important for board examination of class 12th SHORT ANSWER TYPE QUESTIONS. Q1. In a series LCR circuit, obtain the conditions under which (i)the… Continue reading Assignment for short answer type questions of electromagnetic induction and alternating current