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Byju's Answer

Standard XII

Physics

Gauss's Law

If the charge...

Question

If the charges $q_{3}$ and $q_{4}$ are displaced (always remaining outside the Gaussian surface), then consider the following two statements:
A: Electric field at each point on the Gaussian surface will remain same.
B: The value of $\oint \to E . d \to A$ for the Gaussian surface will remain the same.

Both A and B are true.

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Both A and B are false.

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A is true, but b is false.

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B is true, but A is false.

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Solution

The correct option is D B is true, but A is false.
Electric field will change since two of the charges are displaced from their earlier position, while flux will not change since $q_{1}$ and $q_{2}$ are still inside the surface. Hence A is wrong and B is correct

Suggest Corrections

Similar questions

Q. Assertion :Four point charges

q_{1}, q_{2}, q_{3}

and

q_{4}

are shown in figure. The flux over the shown Gaussian surface depends only on charges

q_{1}

and

q_{2}

. Reason: Electric field at all points on Gaussian surface depends only on charges

q_{1}

and

q_{2}

Q. Four point charges

q_{1}, q_{2}, q_{3}

and

q_{4}

are as shown in figure. The flux over the shown Gaussian surface depends only on charges

q_{1}

and

q_{2}

.
Reason: Electric field at all points on Gaussian surface depends only on charges

q_{1}

and

q_{2}

Q. Assertion

(A)

: Four point charges

q_{1}, q_{2}, q_{3}

and

q_{4}

are as shown in figure. The flux over the shown gaussian surface depends only on charges

q_{1}

and

q_{2}

Reason

(R)

: Electric field at all points on gaussian surface is depends only on charges

q_{1}

and

q_{2}

Select the most appropriate answer from the options given below

Comment on the correctness of the following two statements.

Statement I – Net Electric field strength on a Gaussian surface may change if the charges inside or outside move.

Statement II – Electric flux through a Gaussian surface will not change if the charges contained inside do not cross the boundary of the assumed Gaussian surface.

q_{1}, q_{2}, q_{3}

and

q_{4}

are point charges located at points as shown in the figure and S is a spherical Gaussian surface of radius

R

. Which of the following is true according to the Gauss's law ?

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If the charges q3 and q4 are displaced (always remaining outside the Gaussian surface), then consider the following two statements:A: Electric field at each point on the Gaussian surface will remain same.B: The value of ∮→E.d→A for the Gaussian surface will remain the same.

The correct option is D B is true, but A is false.Electric field will change since two of the charges are displaced from their earlier position, while flux will not change since q1 and q2 are still inside the surface. Hence A is wrong and B is correct

The correct option is D B is true, but A is false.
Electric field will change since two of the charges are displaced from their earlier position, while flux will not change since $q_{1}$ and $q_{2}$ are still inside the surface. Hence A is wrong and B is correct