SATHEE: electric-charges-and-fields Question 35

Electric Charges And Fields

electric-charges-and-fields Question 35

Question: Q. 6. Fivecharges $q_{1}, q_{2}, q_{3}, q_{4}$ , and $q_{5}$ are fixed at their posifions as shown in Figure. $S$ is a Gaussian surface. The Gauss’s law is given by :

$\oint_{s} E . d s = \frac{q}{ε_{0}}$

Gaussian Surface

Which of the following statements is correct?

(a) $E$ on the LHS of the above equation will have a contribution from $q_{1}, q_{5}$ and $q_{3}$ while $q$ on the RHS will have a contribution from $q_{2}$ and $q_{4}$ only.

(b) $E$ on the LHS of the above equation will have a contribution from all charges while $q$ on the RHS will have a contribution from $q_{2}$ and $q_{4}$ only.

(c) $E$ on the LHS of the above equation will have a contribution from all charges while $q$ on the RHS will have a contribution from $q_{1}, q_{3}$ and $q_{5}$ only.

(d) Both $E$ on the LHS and $q$ on the RHS will have contributions from $q_{2}$ and $q_{4}$ only.

[NCERT Exemplar]

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Solution:

Ans. Correct option : (b)

Explanation : As all charges are positive (or of same signs) so electric field lines on R.H.S. of Gaussian surface will be due to $q_{2}$ and $q_{4}$ only.

On L.H.S. of Gaussian surface, the electric field lines on ’ $E$ ’ will be due to $q_{1}, q_{2}, q_{3}, q_{4}$ and $q_{5}$ . So, answer $(b)$ is verified.

Electric Charges And Fields

electric-charges-and-fields Question 35

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Electric Charges And Fields

electric-charges-and-fields Question 35

Table of Contents

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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