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BARC ECE 2019 : EMT Nuclear Quiz 3
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Question 1
which of the following are the examples of non-polar dielectrics?
Question 2
What is the total flux in a coil of having magnetic flux density 12 units and area 7 units?
Question 3
Hard magnetic materials have large hysteresis loss due to which of the following reasons?
Question 4
Find the energy stored in a system for four identical charges Q = 3 nc at the corners 2 m on a side.
Question 5
Given the magnetic vector potential 
wb/m. What will be the total magnetic flux crossing the surface 
, 
, 
.
wb/m. What will be the total magnetic flux crossing the surface , , . Question 6
The Electric field of a uniformed plane wave in free space is given by
The magnetic field 
is: -
The magnetic field is: - Question 7
Let the electric field vector of a plane electromagnetic wave propagating in a homogenous medium be expressed as 
, where the propagation constant 
is a function of the angular frequency 
. Assume that 
and 
are known and are real. From the information available, which one of the following CANNOT be determined?
, where the propagation constant is a function of the angular frequency . Assume that and are known and are real. From the information available, which one of the following CANNOT be determined? Question 8
Which of the following statements is not a characteristic of static magnetic fields?
Question 9
A potential field exists in a region where 
is
Question 10
A conductor with cross-sectional area of 
.carrier a conductor current 2
. If 
and 
, the magnitude of the displacement current density is
.carrier a conductor current 2. If and , the magnitude of the displacement current density is - 351 attempts
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