Electromagnetic Theory (GATE (Graduate Aptitude Test in Engineering) Physics): Questions 5 - 8 of 88

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Question number: 5

» Electromagnetic Theory » Solutions of Electrostatic and Magnetostatic Problems

Appeared in Year: 2014

Short Answer Question▾

Write in Short

The value of the magnetic field required to maintain non – relativistic protons of energy in a circular orbit of radius is .

(Given: )

Question number: 6

» Electromagnetic Theory » Faraday's Law

Appeared in Year: 2015

MCQ▾

Question

A long solenoid is embedded in a conducting medium and is insulated from the medium. If the current through the solenoid is increased at a constant rate, the induced current in the medium as a function of the radial distance from the axis of the solenoid is proportional to –

Choices

Choice (4) Response

a.

inside the solenoid and outside

b.

inside the solenoid and outside

c.

inside the solenoid and outside

d.

inside the solenoid and outside

Question number: 7

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2016

MCQ▾

Question

Which of the following magnetic vector potentials gives rise to a uniform magnetic field ?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 8

» Electromagnetic Theory » Solutions of Electrostatic and Magnetostatic Problems

Appeared in Year: 2016

Short Answer Question▾

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The magnitude of the magnetic dipole moment associate with a square shaped loop carrying a steady current is . If this loop is changed to a circular shape with the same current passing it, the magnetic moment becomes . The value of is .

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