GATE PH Electromagnetic Theory PYQs & Answers

Questions 1–10 of 76. Imported answers require independent review unless marked reviewed.

In free space, an electromagnetic wave is traveling whose wavevector is

. The electric field component of this electromagnetic wave is given by

. The speed of light in free space is

. The corresponding magnetic field

Your answerChoose one option.

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An infinitely large non-conducting thin sheet in the

plane (

) carries a uniform surface charge density

. The electric field in the region

. Then, the electric field

in the region

will be

(

)

Your answerChoose one option.

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Which of the following options is correct for transformation of electric field

and magnetic field

under time reversal, i.e.,

Your answerChoose one option.

and

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For the electric field of an electromagnetic wave given below, which of the following statements is correct?

Your answerChoose one option.

The electric field is linearly polarized with slope 2.

The electric field is circularly polarized with radius

The electric field is elliptically polarized with a ratio of major to minor axis being 2.

The electric field is unpolarized with the two components being phase shifted by

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A dielectric sphere carries a uniform polarization

. The magnitude of the electric field at the center of the sphere is

. The value of

(rounded off to one decimal place) is ____

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An infinitely large thin sheet in the

-plane carries uniform positive charge density and is moving with constant velocity

in the

direction (see figure below). The direction of the corresponding Poynting vector is

Your answerChoose one option.

for both

and

for

and

for

and

for

for both

and

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A positive point charge is fixed at the origin. At some distance from it on the

axis, a point dipole is kept pointing in the

direction. The force on the dipole is

Your answerChoose one option.

in the

direction

in the

direction

in the

direction

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Consider a particle of mass

kg and charge

C in a uniform electromagnetic field

. The particle is released from the coordinates

at time

. Starting from initial speed zero, it comes back to the

-axis for the first time at time

. The value of

in seconds (rounded off to two decimal places) is ____

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A capacitor is made of two circular metal plates of radius 1 m separated by a distance of

mm. The space between them is filled by a dielectric with permittivity

. The capacitor is connected to a voltage

volts, where

is in seconds. The maximum value of the magnetic field in between the plates at a radial distance

m from the centre of the capacitor is

T. The value of

(rounded off to two decimal places) is _____

(Speed of light in vacuum

m.s

)

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A linear dielectric sphere of radius

has a uniform frozen-in polarization along the

-axis. The center of the sphere initially coincides with the origin, about which the electric dipole moment is

. When the sphere is shifted to the point

, the corresponding dipole moment with respect to the origin is

. The value of

(in integer) is ______

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GATE PH Electromagnetic Theory PYQs

How to practice Electromagnetic Theory

Question 11

Question 12

Question 15

Question 19

Question 30

Question 47

Question 48

Question 57

Question 61

Question 31