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(a) Explain the meaning of the statement 'electric charge of a
Physics Part-I
Physics Part-I

Class 12

NCERT

Publisher:
NCERT
Subject:
Physics
1

Chapter 1: Electric Charges and Fields

47 questions

Q1
Check that the ratio  /G is dimensionless. Look up a Table of Physical Constants and detere the value of this ratio. What does the ratio signify?
Q2
(a) Explain the meaning of the statement 'electric charge of a body is quantised'.
(b) Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?
Q3
When a glass rod is rubbed with a silk cloth, charges appear on both. A similar phenomenon is observed with many other pairs of bodies. Explain how this observation is consistent with the law of conservation of charge.
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Question
Easy
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Solving time: 2 mins

(a) Explain the meaning of the statement 'electric charge of a body is quantised'.
(b) Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?

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Updated on: Oct 16, 2023

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Physics Part-I (NCERT)

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(a) Electric charge of a body is quantized. This means that only integral (1, 2, …., n) number of electrons can be transferred from one body to the other. Charges are not transferred in fraction. Hence, a body possesses total charge only in integral multiples of electric charge.

(b) In macroscopic or large scale charges, the charges used are huge as compared to the magnitude of electric charge. Hence, quantization of electric charge is of no use on macroscopic scale. Therefore, it is ignored and it is considered that electric charge is continuous.

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(b) Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?
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Check that the ratio  /G is dimensionless. Look up a Table of Physical Constants and detere the value of this ratio. What does the ratio signify?
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(a) Explain the meaning of the statement 'electric charge of a body is quantised'.
(b) Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?
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When a glass rod is rubbed with a silk cloth, charges appear on both. A similar phenomenon is observed with many other pairs of bodies. Explain how this observation is consistent with the law of conservation of charge.
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Question Text
(a) Explain the meaning of the statement 'electric charge of a body is quantised'.
(b) Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?
Updated OnOct 16, 2023
TopicElectric Charges and Fields
SubjectPhysics
ClassClass 12
Answer TypeText solution:1 Video solution: 6
Upvotes580
Avg. Video Duration4 min