Electromagnetic Theory (CSIR Physical Sciences): Questions 5  7 of 57
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Question number: 5
» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications
Appeared in Year: 2012
Question
Three charges are located on the circumference of a circle of radius R as shown in the figure below. The two charges Q subtend an angle 90^{0} at the centre of the circle. The charge q is symmetrically placed with respect to the charges Q. If the electric field at the centre of the circle zero, what is the magnitude of Q? (December)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 6
» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications
Appeared in Year: 2014
Question
A charged particle is at a distance d from an infinite conducting plane maintained at zero potential. When released from rest, the particle reaches a speed at a distance from the plane. At what distance from the plane will the particle reach the speed ? (June)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 7
» Electromagnetic Theory » Interference
Appeared in Year: 2012
Question
Consider the interference of two coherent electromagnetic waves whose electric field vectors are given by and where is the phase difference. The intensity of the resulting wave is given by , where is the time average of . The total intensity is – (December)
Choices
Choice (4)  Response  

a. 


b. 


c.  0 

d. 

