ECE · all questions

Electromagnetic Field Theory
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329

Questions

11/17

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Q201

Open question

The electric field of an electromagnetic wave at a point in free space is in the positive Y direction and the magnetic field is in the negative X direction. The direction of power flow will be in the

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Q202

Open question

The flux and potential functions due to a line charge and due to two concentric circular conductors are of the following form:

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Q203

Open question

The continuity of the tangential field component at the interface of two media for normal incidence of a plane wave requires

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Q204

Open question

Which of the following relationship correct
Electromagnetic Field Theory mcq question image

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Q205

Open question

A point charge is located at origin. At point (a, a) electric field is E₁. At point (-a, a) the electric field is E₂ and at point (-a, -a) the electric field is E₃.

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Q206

Open question

Which is valid Maxwell equation for magnetic flux density.

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Q207

Open question

The electric field intensity

E

at a point P is given by

10 i^+ 10 j^+ 10 k^

where

i^, j^

and

k^

are unit vectors in x, y and z directions respectively. If α, β, γ are respectively the angles the

E

vector makes with x, y and z axes respectively, they are given by which of the following?

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Q208

Open question

As a result of reflections from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater than the velocity of light in space. This is called the

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Q209

Open question

\nabla^{2} H = μ_{0} ε_{0} \frac{\partial ^{2} H}{\partial t ^{2}}

is a

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Q210

Open question

Consider the following statements:
1. For an isotropic medium, ε is a scalar constant.
2. For a homogeneous medium, ε, µ and σ are constant throughout the region.
3. In an anisotropic medium, D and E have the same direction.
4. For certain crystalline medium, ε varies with the direction of E.
Which of the above crystalline medium, ε varies with the direction of E.

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Q211

Open question

The maxwell's equation which interprets that isolated magnetic poles do not exist is

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Q212

Open question

When the electric field is maximum value, the magnetic energy of a cavity is

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Q213

Open question

When waves travel along a transmission line from a generator to load, through which region is power transmission taking place?

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Q214

Open question

The electric field lines and equipotential lines

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Q215

Open question

A shape of homogeneous linear dielectric material of dielectric constant ≥ 1 is placed in a uniform electric field E₀, then the electric field E that exists inside the sphere is: