GATE PH concept:poynting-vector PYQs & Answers

Questions 1–4 of 4. Imported answers require independent review unless marked reviewed.

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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Consider a tiny current loop driven by a sinusoidal alternating current. If the surface integral of its time-averaged Poynting vector is constant, then the magnitude of the time-averaged magnetic field intensity, at any arbitrary position,

, is proportional to

Your answerChoose one option.

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A plane electromagnetic wave of wavelength

is incident on a circular loop of conducting wire. The loop radius is

(

). The angle (in degrees) made by the Poynting vector with the normal to the plane of the loop to generate a maximum induced electrical signal, is _____.

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A long straight wire, having radius

and resistance per unit length

, carries a current

. The magnitude and direction of the Poynting vector on the surface of the wire is

Your answerChoose one option.

, perpendicular to axis of the wire and pointing inwards

, perpendicular to axis of the wire and pointing outwards

, perpendicular to axis of the wire and pointing inwards

, perpendicular to axis of the wire and pointing outwards

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GATE PH concept:poynting-vector PYQs

How to practice concept:poynting-vector

Question 47

Question 5

Question 45

Question 32