Electromagnetic Theory-Electrostatics: Gauss's Law and Its Applications (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 11 - 13 of 13

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Question number: 11

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

Appeared in Year: 2012

MCQ▾

Question

Charges Q, Q and -2Q are placed on the vertices of an equilateral triangle ABC of sides of length Equation , as shown in the figure

Three charges at the vertices of triangle

Three Charges at the Vertices of Triangle

In figure charges Q, Q and – 2Q are placed on the vertices of an equilateral triangle ABC of sides of length a.

The dipole moment of this configuration of charges, irrespective of the choice of origin, is – (June)

Choices

Choice (4) Response

a.

Equation

b.

0

c.

Equation

d.

Equation

Question number: 12

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

Appeared in Year: 2016

MCQ▾

Question

The charge per unit length of a circular wire of radius Equation in the Equation plane, with its centre at the origin, is Equation , where Equation is a constant and the angle Equation is measured from the positive Equation axis. The electric field at the centre of the circle is: (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 13

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

Appeared in Year: 2016

MCQ▾

Question

Two uniformly charged insulating solid sphere Equation and Equation , both of radius Equation , carry total charges Equation and Equation , respectively. The sphere are placed touching each other as shown in the figure.

Two uniformly charged insulating solid sphere

Two Uniformly Charged Insulating Solid Sphere

In figure, two uniformly charged insulating solid sphere, is shown.

If the potential at the centre of the sphere Equation is Equation and that at the centre of Equation is Equation , then the difference Equation is: (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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