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ISRO EC 2018:Electromagnetic Theory Booster Quiz 3

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Question 1

Given

where

denotes the unit vector in y- direction. The value of the phase velocity is

Question 2

Find the flux density at B(2,π/2,0) if the given magnetic vector potential A= 8sin

spherical co-ordinates?

Question 3

Hard magnetic materials have large hysteresis loss due to which of the following reasons?

Question 4

What will be the current in the circular coil of radius 15 cm having magnetic field strength of 2,000 A/m, if the coil is wound with 250 turns.

Question 5

The energy in poynting theorem is explained as:

Question 6

Identify the correct statement about nature of inductor current at points X and Y, when voltage at point X is greater than voltage at point Y?

Question 7

What is the total flux in a coil of having magnetic flux density 12 units and area 7 units?

Question 8

Two equal point charges separated by a distance of

experiences a repulsive force of 1.4 MN. Find the value of point charge.

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Dec 14ESE & GATE EC