Electronics and Communication Engineering - Electromagnetic Field Theory

46.
An alternating current or voltage is that which
changes in magnitude only
changes in direction only
both (a) and (b)
has a random movement of electrons
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
When the magnetic vector is parallel to the boundary surface and electric vector is parallel to the place of incidence, the polarization is
zero
vertical
perpendicular
horizontal
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
The total electrical energy emitted overall space from an electron of charge e and radius r is
e0r2
e20r
e2/4pε0r2
e2/8pε0r
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
In broadside array
the principle direction radiation is perpendicular to the array axis and also to the plane containing the array elements
the principle direction radiation is parallel to the array axis and also to the plane containing the array elements
the principle direction radiation is parallel to the array axis and perpendicular to the plane containing the array elements
the principle direction radiation is perpendicular to the array axis and parallel to the plane containing the array elements
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
Which of following antenna does not depend upon the frequency?
Log-periodic
Parabolic
Conical
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.