Embibe Experts Solutions for Chapter: Electromagnetic Induction, Exercise 1: Madhya Pradesh Board-2018

What is a dynamo? Describe an a.c. dynamo under the following headings:

$\left(\mathrm{ii}\right)$ Labelled diagram

What is a dynamo? Describe an a.c. dynamo under the following headings:

$\left(\mathrm{iii}\right)$ Working.

What is the unit of self-inductance?

Write Lenz's law regarding electromagnetic induction and explain how Lenz's law is equivalent to the law of conservation of energy.

S.I. unit of inductive reactance $\left({\mathrm{X}}_{\mathrm{L}}\right)$ is $\left[{\mathrm{ML}}^2{\mathrm{T}}^x{\mathrm{A}}^{-2}\right]$. The value of $x$ is _____.

What do you mean by magnetic flux? Write its unit. State Faraday's law of electromagnetic induction.

What is self induction? Write the unit of self inductance? Derive an expression for energy stored in current carrying coil.

What is Dynamo? Draw a labelled diagram and describe the working of an AC dynamo.