Electromagnetic Theory-Electrostatics: Gauss's Law and Its Applications (CSIR Physical Sciences): Questions 8 - 10 of 11

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Question number: 8

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2014

MCQ▾

Question

A charge (e) is placed in vacuum at the point (d,0,0) ; where d>0 . The region x0 is filled uniformly with a metal. The electric field at the point (d2,0, 0) is – (June – 2014)

Choices

Choice (4) Response
a.

10e9πε0d2(1, 0,0)

b.

eπε0d2(1, 0,0)

c.

10e9πε0d2(1, 0,0)

d.

eπε0d2(1, 0,0)

Question number: 9

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2013

MCQ▾

Question

A point charge q is placed symmetrically at a distance d from two perpendicularly placed grounded conducting infinite plates as shown in the figure. The net force on the charge (in units of 14πε0 ) is –

A point charge placed between two perpendicular plates

A Point Charge Placed Between Two Perpendicular Plates

In figure a point charge q is placed symmetrically at a distance d from two perpendicularly placed grounded conducting infinite plates.

(December – 2013)

Choices

Choice (4) Response
a.

3q28d2 away from the corner

b.

q28d2(221) away from the corner

c.

q222d2 towards the corner

d.

q28d2(221) towards the corner

Question number: 10

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2013

MCQ▾

Question

Let four point charges q,q2,qandq2 be placed at the vertices of a square of side a . Let another point charge q be placed at the centre of the square (see the figure)

4charges placed at the vertices of a square & 1 point at centre

4charges Placed at the Vertices of a Square & 1 Point at Centre

In figure four charges placed at the vertices of a square and one point charge is placed at the centre of the square.

Let V(r) be the electrostatic potential at a point P at a distance ra from the centre of the square. Then V(2r)V(r) is – (December – 2013)

Choices

Choice (4) Response
a.

18

b.

14

c.

1

d.

12

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