Electromagnetic Theory-Scalar and Vector Potentials (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 7 - 9 of 10

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Question number: 7

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2012

MCQ▾

Question

The vector potential Equation due to a magnetic moment Equation at a point Equation is given by Equation . If Equation is directed along the positive z – axis, the x – component of the magnetic field, at the point Equation , is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 8

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2012

MCQ▾

Question

Consider an infinite conducting sheet in the XY – plane with a time dependent current density Equation , where K is constant. The vector potential at Equation is given by Equation . The magnetic field Equation is –

(December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 9

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2011

MCQ▾

Question

A constant electric current I in an infinitely long straight wire is suddenly switched on at Equation . The vector potential at a perpendicular distance Equation from the wire is given by Equation . The electric field at a distance Equation is –

(December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

0

d.

Equation

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