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GATE 2023 Electromagnetics & transmission line Quiz 38

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Question 1

A varying magnetic flux linking a coil is If the value of λ=-1, then at what time the induced EMF is 9V?

Question 2

In the plane z = 5m a thin ring of radius, a = 3m is placed such that x-axis passes through it’s center. If the ring carries a current of 50 mA in 4 direction then the magnetic field intensity at point (0, 0, 1) will be ……….. mA/m in az direction

Question 3

Planes z = 0 & z = 4 carry current k = –10ax A/m & k = 10ax A/m respectively. Determine H at (1, 1, 1)?

Question 4

A conductor of uniform cross section and 60 m long has voltage drop of 1.2 V and a current density of 2.56 × 105 A/m2. The conductivity of the material in conductor is _________ × 107 S/m

Question 5

Let μ=10-5H/m, ϵ = 4 ×10-9F/m, σ =0 and ρV = 0. Find K so that D = 6ax – 2ay + 2zaz nC/m2 and H = kxax – 10yay - 25 zaz A/m satisfies Maxwell’s equations.

Question 6

Consider the rectangular loop on z =0 plane shown in figure. The magnetic flux density is. . The total force experienced by the rectangular loop is
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Jul 11ESE & GATE EC