Electromagnetic Theory (CSIR Physical Sciences): Questions 48  50 of 57
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Question number: 48
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2012
Question
Consider an infinite conducting sheet in the XY – plane with a time dependent current density , where K is constant. The vector potential at is given by . The magnetic field is –
(December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 49
» Electromagnetic Theory » Gauss Law and Applications
Appeared in Year: 2012
Question
An infinite solenoid with its axis of symmetry along the z – direction carries a steady current .
The vector potential at a distance from the axis, (December)
Choices
Choice (4)  Response  

a.  Varies as inside and as R outside the solenoid 

b.  Varies as R inside and is constant outside the solenoid 

c.  Is constant inside and varies as R outside the solenoid 

d.  Varies as R inside and as outside the solenoid 

Passage
The magnetic field of the mode of a rectangular waveguide of dimensions as shows in the figure is given by , where and are in cm.
Question number: 50 (1 of 2 Based on Passage) Show Passage
» Electromagnetic Theory » Electromagnetic Waves in Free Space
Question
The entire range of frequencies for which the mode will propagate is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

