Electromagnetic Theory Interview Experienced Online Exam Quiz
Electromagnetic Theory Interview Experienced GK Quiz. Question and Answers related to Electromagnetic Theory Interview Experienced. MCQ (Multiple Choice Questions with answers about Electromagnetic Theory Interview Experienced
Calculate the displacement current density when the electric flux density is 20sin 0.5t.
Options
A : 10sin 0.5t
B : 10cos 0.5t
C : 20sin 2t
D : 20cos 2t
Find the magnitude of the displacement current density in air at a frequency of 18GHz in frequency domain. Take electric field E as 4 units.
Options
A : 18
B : 72
C : 36
D : 4
Calculate the frequency at which the conduction and displacement currents become equal with unity conductivity in a material of permittivity 2.
Options
A : 18 GHz
B : 9 GHz
C : 36 GHz
D : 24 GHz
Find the conductivity of a material with conduction current density 100 units and electric field of 4 units.
Options
A : 25
B : 400
C : 0.04
D : 1600
The intrinsic impedance of free space is given by
Options
A : 272 ohm
B : 412 ohm
C : 740 ohm
D : 377 ohm
In good conductors, the electric and magnetic fields will be
Options
A : 45 in phase
B : 45 out of phase
C : 90 in phase
D : 90 out of phase
The ratio of conduction to displacement current density is referred to as
Options
A : Attenuation constant
B : Propagation constant
C : Loss tangent
D : Dielectric constant
If the loss tangent is very less, then the material will be a
Options
A : Conductor
B : Lossless dielectric
C : Lossy dielectric
D : Insulator
In free space, which of the following will be zero?
Options
A : Permittivity
B : Permeability
C : Conductivity
D : Resistivity
If the intrinsic angle is 20, then find the loss tangent.
Options
A : tan 20
B : tan 40
C : tan 60
D : tan 80
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