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Assertion : With the help of Gauss's the...

Assertion : With the help of Gauss's theorm we can find electric field at any point.
Reason : Gauss's theorem can be applied for any type of charge distribution.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion

B

If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion

C

If Assertion is true but Reason is false

D

If Assertion is false but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Assertion: In case of charged spherical shells, E-r graph is discontinuous while V-r graph is continuous Reason: According to Gauss's theorem only the charge inside a closed surface ca produce electric field at some point.

    A
    If both assertion and reason are ture and reason is the correct explanation of assertion.
    B
    If both assertin and reason are ture but reason is not the correct explanation of assertion .
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

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    Assertion:- In a given situation of arrangement of charges, an extra charge is placed outside the Gaussion surface. In the Gauss Theroem ointvecEdvecs=(Q_(in))/(epsilon_(0))Q_(in) remains unchanged whereas electric field vecE at the site of the element is changed. Reason:- Electric field vecE at any point on the Gaussian surface is due to inside charge only.

    Using Gauss’ law, derive an expression for the electric field at a point near an infinitely long straight uniformly charged wire.

    Assertion: A point charge is brought in an electric field. The field at a nearby point will increase, whatever be the nature of the charge. Reason: The electric field is independent of the nature of charge.

    Assertion: Gauss's theroem can be applied only for a closed surface. Reason: Electric flux can be obtained passing from an open surface also.

    Assertion: In case of charged spherical shells, E-r graph is discontinuous while V-r graph is continuous Reason: According to Gauss's theorem only the charge inside a closed surface can produce electric field at some point.

    Assertion : For a non-uniformly charged thin circular ring with net charge zero, the electric field at any point on axis of the ring is zero. Reason : For a non-uniformly charged thin circular ring with net charge zero, the electric potential at each point on axis of the ring is zero.

    Answer the following: (i) Use Gauss' law to find the electric field due to a uniformly charged infinite plane sheet. What is the direction of field for positive and negative charge densities? (ii) Find the ratio of the potential differences that must be applied across the parallel and series combination of two capacitors C_(1) and C_(2) with their capacitance in the ratio 1 : 2 so that the energy stored in the two cases becomes the same.

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