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Maxwell's Equation MCQ Level - 1 - Physics MCQ


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10 Questions MCQ Test Topic wise Tests for IIT JAM Physics - Maxwell's Equation MCQ Level - 1

Maxwell's Equation MCQ Level - 1 for Physics 2024 is part of Topic wise Tests for IIT JAM Physics preparation. The Maxwell's Equation MCQ Level - 1 questions and answers have been prepared according to the Physics exam syllabus.The Maxwell's Equation MCQ Level - 1 MCQs are made for Physics 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Maxwell's Equation MCQ Level - 1 below.
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Maxwell's Equation MCQ Level - 1 - Question 1

A capacitor (parallel plate) is being charged at a constant rate dθ/dt = b. If S is the area of the plates and d is separation between them, displacement current is

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 1

Displacement current


The correct answer is: b

Maxwell's Equation MCQ Level - 1 - Question 2

A constant current I is flowing through a cylindrical conductor, the direction of Poynting vector is

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 2

Let us suppose that direction of I of 

Which drives the current. 
∴  Direction of Poynting  

The correct answer is: 

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Maxwell's Equation MCQ Level - 1 - Question 3

If  is current density and ρ is the electric charge density then the equation  represents

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 3

If I is current,   then where   is known as current density.

By divergence theorem 

This is known as equation of continuity.
The correct answer is: continuity equation

Maxwell's Equation MCQ Level - 1 - Question 4

Which one of the following Maxwell’s equations implies the absence of magnetic monopoles?

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 4

 The correct answer would be option D.

There is one zero that is present in Maxwell's Equations, which shows up in Gauss' Magnetic Law. As you know, zero means the absence of something - that which does not exist. And this particular zero means that magnetic monopoles do not exist.

there are no magnetic monopoles

Maxwell's Equation MCQ Level - 1 - Question 5

If  is an electric field and is magnetic induction, then the energy per unit area per unit time in electromagnetic field is given by

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 5

The correct answer is: 

Maxwell's Equation MCQ Level - 1 - Question 6

The total energy stored in electromagnetic field is

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 6

Total energy stored in electromagnetic field is equal to sum of the energy due to the electric field (Ee) and the energy due to magnetic field (EH)

Maxwell's Equation MCQ Level - 1 - Question 7

What is the Poynting vector at the surface of a long cylindrical wire of radius R, length L carrying a current I, when its ends are kept at a potential difference of V ?

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 7

The rate of flowing energy per unit area along a plane perpendicular to the direction of the wave motion is called Poynting vector denoted by letter S and is given as

Thus, Poynting vector 
Curved surface area of its cylinder = 2πrL

Maxwell's Equation MCQ Level - 1 - Question 8

With an electromagnetic wave propagating in space, the total electromagnetic energy in a certain volume V can be written as which form ?

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 8

The correct answer is: Essentially the rate at which at electric field is doing work on charges in the volume  i.e., 

Maxwell's Equation MCQ Level - 1 - Question 9

A plane electromagnetic wave is given by   At a given location, the number of times  vanishes in 1s is

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 9

The plane electromagnetic wave is 
The frequency of the wave is f = ω/2π
Hence,  vanishes ω/2π in 1s which is independent of δ.

The correct answer is: an integer near ω/2π and is independent of δ

Maxwell's Equation MCQ Level - 1 - Question 10

The electric and magnetic fields in the space are being unit vectors in x and y directions respectively. The Poynting vector in this region is

Detailed Solution for Maxwell's Equation MCQ Level - 1 - Question 10

The rate of transmission of electromagnetic energy per unit area through a plane perpendicular to the direction of propagation of the electromagnetic waves is known as Poynting vector denoted by letter   and is given as

The correct answer is: 

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