Electronics and Communication Engineering - Electromagnetic Field Theory

11.
Antenna is a __________ element
passive
active
resistive
capacitive
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
Laplacian of a scalar function v is
gradient of v
divergence of v
gradient of the gradient of v
divergence of the gradient of v
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
The numerical value of directive gain may lie between
1 and + 1
0 and 1
0 and ∞
1 and ∞
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
The wave propagation occurs without attenuation in case of a
conductor
semiconductor
perfect dielectric
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
A vertical wire of 1 meter length carries a current of 1 A at 10 MHz. The total radiated power is nearly
0.13 W
0.88W
7.3 W
73 W
Answer: Option
Explanation:
No answer description is available. Let's discuss.