The phase velocity v, in transmission line is equal to

1.  1/LG

2.  

3.  LC

4.  

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4
Correct Answer :


Explanation :
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The Q of a resonant transmission line is equal

1.  1/R

2.   WL/R

3.  L/WR

4.  W/LR

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4
Correct Answer :

WL/R


Explanation :
No Explanation available for this question

If v, w, q stand for voltage, energy and charge then v can be expressed as

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
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The energy stored in the magnetic field of a solenoid 30cm long and 3cm diameter wound with 100 turns of wire carrying a current of 10A is

1.  0.015 Joule

2.   0.15 joule

3.  0.5 joule

4.  1.15 joule

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4
Correct Answer :

0.15 joule


Explanation :
No Explanation available for this question

The time average pointing vector, in ω/m2 for a wave within free space is

1.  

2.  

3.  

4.  

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4
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Explanation :
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Three concentric conducting spherical surfaces of radii R1, R2 and R3 (R1< R2< R3) carry charges of -1, -2 and 4 coulombus respectively. The charges on the inner and outer surfaces of the outermost sphere will be respectively (in coulombus)

1.  0. 4

2.   3, 1

3.  -3, 7

4.  -2, 6

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4
Correct Answer :

3, 1


Explanation :
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The intrinsic impedance of copper at high frequencies is

1.  purely resistive

2.  purely inductive

3.  complex with a capacitive component

4.  complex with an inductive component

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4
Correct Answer :

complex with an inductive component


Explanation :
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The propagation constant of a transmission line is given by

1.  

2.  

3.  

4.  None of these

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4
Correct Answer :


Explanation :
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The potential difference between the forces A and B of a uniformly polarized infinite slab shown in the figure is:

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

The electric field across an interface is shown in the figure. The surface charge density (in coulombus /m2) on the interface

1.  -4€ 0

2.  -3€0

3.  +3€0

4.   +4€0

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4
Correct Answer :

-4€ 0


Explanation :
No Explanation available for this question
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