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GATE 2022 : Electromagnetic Theory Quiz 4

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Question 1

Which of the following represent the correct expression of magnetic energy density?

Question 2

The tangential component of magnetic field intensity at the interface between two surface is

Question 3

A magnetic field  exist at a point. If a test charge moving  experience no force at a certain point, the electric field at that point will be

Question 4

The energy stored in a solenoid is 25 J. It is 20 cm long and has a diameter of 3 cm and wound with 1500 turns of wire. Determine the approximate current carried by the solenoid. (Consider π2 ≈ 10)

Question 5

A coil is linked with a varying magnetic flux  If at time t = 5 sec the emf induced is 10 V. then the value of a is

Question 6

Two infinitely long wires at x = 0 and x = 2 carries steady current of 10A flowing in +y direction. The magnetic field density  at (4, 0, 0) is
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