Electromagnetic Theory (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 58 - 61 of 68

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Question number: 58

» 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 in the plane, with its centre at the origin, is , where is a constant and the angle is measured from the positive axis. The electric field at the centre of the circle is: (December)

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Choice (4) Response

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d.

Question number: 59

» Electromagnetic Theory » Laplace and Poisson Equations

Appeared in Year: 2016

MCQ▾

Question

The Laplace transform of

is: (December)

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Choice (4) Response

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b.

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d.

Question number: 60

» Electromagnetic Theory » Electromagnetic Waves in Free Space

Appeared in Year: 2016

MCQ▾

Question

A particle with charge moves with a uniform angular velocity in a circular orbit of radius in the plane, around a fixed charge , which is at the centre of the orbit at . Let the intensity of radiation at the point be and at be . The ratio , for , is: (December)

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Choice (4) Response

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8

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4

Question number: 61

» Electromagnetic Theory » Dynamics of Charged Particles in Static Electromagnetic Field

Appeared in Year: 2016

MCQ▾

Question

Suppose that free charges are present in a material of dielectric constant and resistivity . Using Ohm’s law and the equation of continuity for charge, the time required for the charge density inside the material to decay by is closest to: (December)

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Choice (4) Response

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