Gauss Law And Field Due To Charge Distribution MCQ

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This mock test of Gauss Law And Field Due To Charge Distribution MCQ for Physics helps you for every Physics entrance exam. This contains 10 Multiple Choice Questions for Physics Gauss Law And Field Due To Charge Distribution MCQ (mcq) to study with solutions a complete question bank. The solved questions answers in this Gauss Law And Field Due To Charge Distribution MCQ quiz give you a good mix of easy questions and tough questions. Physics students definitely take this Gauss Law And Field Due To Charge Distribution MCQ exercise for a better result in the exam. You can find other Gauss Law And Field Due To Charge Distribution MCQ extra questions, long questions & short questions for Physics on EduRev as well by searching above.

QUESTION: 1

If the flux of the electric field through a closed surface is zero

A.
the net charge in the vicinity of the surface must be zero
B.
the net charge inside the surface must be zero
C.
the electric field must be non-zero everywhere on the surface
D.
the electric field must be zero everywhere on the surface

Solution:

Flux across a closed surface,
Since, so, charge enclosed q = 0

The correct answer is: the net charge inside the surface must be zero

QUESTION: 2

Electric charge is uniformly distributed along a long straight wire of radius 1mm. The charge per cm length of the wire is Q coulomb. Another cylindrical surface of radius 50cm and length 1m symmetrically encloses the wire as shown in figure. The total electric flux passing through the cylinder surface is

Solution:

QUESTION: 3

A sphere of radius R has a uniform of volume charge density. The electric potential at a point r, r < R is

A.
due to the charge in the spherical shell of inner and outer radii r and R only
B.
Independent of r
C.
due to entire charge of the sphere
D.
due to the charge inside a sphere of radius r only

Solution:

The correct answer is: due to entire charge of the sphere

QUESTION: 4

Charge on the outer sphere is q and the inner sphere is grounded. Then the charge q' on the inner sphere r₂ > r₁.

A.
B.
C.
D.
0

Solution:

Potential at the surface of inner sphere = 0 (grounded)

QUESTION: 5

If the electric flux entering and leaving an enclosed surface respectively is and the electric charge inside the surface will be

Solution:

QUESTION: 6

The SI unit of electric flux is

A.
volt × metre
B.
Joule/coulomb
C.
Newton/coulomb
D.
Weber

Solution:

Electric flux = E.A

The correct answer is: volt × metre

QUESTION: 7

A point charge is kept at the mid point between two large parallel grounded conducting plates. Assuming no gravity. The charge is displaced a little towards the right plate. The charge will now

A.
Move towards the left plate
B.
Move towards the right plate
C.
Stay where it is
D.
Oscillate between the plates

Solution:

When the charge is placed at the mid point, opposite charge will induced on both the plates equally. But when q is displaced toward the right, more charge of the opposite sign will get induced on the right plate than on the left plate. Hence the point charge will feel a net attraction towards the right plate.

The correct answer is: Move towards the right plate

QUESTION: 8

The figure shows electric field E at a distance r in any direction from the origin O. The electric field is due to

A.
a charged solid metallic sphere of radius OP with centre at O.
B.
a uniform charged non-conducting hollow sphere of radius OP with centre at O.
C.
a uniform charged non-conducting sphere of radius OP with centre at O.
D.
a charged hollow metallic sphere of radius OP with centre at O.