Electromagnetic Theory (CSIR Physical Sciences): Questions 1  4 of 57
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Question number: 1
» Electromagnetic Theory » Scalar and Vector Potentials
Appeared in Year: 2013
Question
If the electric and magnetic field are unchanged when the vector potential changes (in suitable units) according to, where then the scalar potential must simultaneously change to – (June)
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Question number: 2
» Electromagnetic Theory » Magnetostatics » Ampere's Theorem
Appeared in Year: 2013
Question
The force between two long and parallel wires carrying I_{1} and I_{2} and separated by distance D is proportional to – (December)
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Question number: 3
» Electromagnetic Theory » Gauge Invariance
Appeared in Year: 2013
Question
The components of a vector potential are given by,
Where k is a constant. The three component of the electric field are – (June)
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Question number: 4
» Electromagnetic Theory » Dynamics of Charged Particles in Static Electromagnetic Field
Appeared in Year: 2014
Question
A charged particle moves in a helical path under the influence of a constant magnetic field. The initial velocity is such that the component along the magnetic field is twice the component in the plane normal to magnetic field.
The ratio of the pinch to the radius R of the helical path is –
(December)
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Choice (4)  Response  

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c. 


d. 

