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Physics Part-I

Electric Charges and Fields

A point charge causes an electric flux of -1.0 10^{3} Nm^{2}/C

Physics Part-I

Class 12

NCERT

Chapter 1: Electric Charges and Fields

47 questions

A point charge of

2.0 μ C

is at the centre of a cubic Gaussian surface

9.0 c m

on edge. What is the net electric flux through the surface?

A point charge causes an electric flux of

- 1.0 \times 1 0^{3}

m^{2}

/C to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge. (a) If the radius of the Gaussian surface were doubled,how much flux would pass through the surface? (b) What is the value of the point charge?

A conducting sphere of radius

10 c m

has an unknown charge. If the electric field

20 c m

from the centre of the sphere is

1.5 \times 1 0^{3} N / C

and points radially inward, what is the net charge on the sphere?

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Question

Easy

Solving time: 4 mins

A point charge causes an electric flux of $- 1.0 \times 1 0^{3}$ N $m^{2}$ /C to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge. (a) If the radius of the Gaussian surface were doubled,how much flux would pass through the surface? (b) What is the value of the point charge?

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Updated on: Sep 24, 2022

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Physics Part-I (NCERT)

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A point charge causes an electric flux of

- 1.0 \times 1 0^{3}

m^{2}

14 mins ago

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Text solutionVerified

(a) Electric flux, $ϕ = - 1 \times 1 0^{3} N m^{2} / C$

Radius of the Gaussian surface,

$r = 10.0 c m$

Electric flux coming out through a surface depends on the net charge enclosed inside a body. It does not depend on the size of the body. If the radius of the Gaussian surface is doubled, then the flux passing through the surface remains the same i.e., - $1 0^{3} N m^{2} / C .$

(b) $q = ϵ_{0} Φ = 8.85 \times 1 0^{- 12} \times - 1 \times 1 0^{3} C = - 8.85 n C$

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Practice more questions from Physics Part-I (NCERT)

A point charge of

2.0 μ C

is at the centre of a cubic Gaussian surface

9.0 c m

on edge. What is the net electric flux through the surface?

A point charge causes an electric flux of

- 1.0 \times 1 0^{3}

m^{2}

A conducting sphere of radius

10 c m

has an unknown charge. If the electric field

20 c m

from the centre of the sphere is

1.5 \times 1 0^{3} N / C

and points radially inward, what is the net charge on the sphere?

View all

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Question Text	A point charge causes an electric flux of $- 1.0 \times 1 0^{3}$ N $m^{2}$ /C to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge. (a) If the radius of the Gaussian surface were doubled,how much flux would pass through the surface? (b) What is the value of the point charge?
Updated On	Sep 24, 2022
Topic	Electric Charges and Fields
Subject	Physics
Class	Class 12
Answer Type	Text solution:1 Video solution: 13
Upvotes	1414
Avg. Video Duration	7 min

Text solutionVerified

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Text solutionVerified

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