Electronics and Communication Engineering - Electromagnetic Field Theory
Exercise : Electromagnetic Field Theory - Section 1
- Electromagnetic Field Theory - Section 1
- Electromagnetic Field Theory - Section 2
- Electromagnetic Field Theory - Section 3
- Electromagnetic Field Theory - Section 4
- Electromagnetic Field Theory - Section 5
- Electromagnetic Field Theory - Section 6
- Electromagnetic Field Theory - Section 7
- Electromagnetic Field Theory - Section 8
- Electromagnetic Field Theory - Section 9
- Electromagnetic Field Theory - Section 10
- Electromagnetic Field Theory - Section 11
- Electromagnetic Field Theory - Section 12
- Electromagnetic Field Theory - Section 13
46.
Find the noise factor for an antenna at 27°C with equivalent noise temperature 30°K
Answer: Option
Explanation:
Te = T0(F - 1)
.
47.
The displacement flux density at a point on the surface of a perfect conductor is 
= 2(ax - 3 az)c/m2 pointing away from the surface. The charge density at that point c/m2 will be
= 2(ax - 3 az)c/m2 pointing away from the surface. The charge density at that point c/m2 will beAnswer: Option
Explanation:
∇ . D = r.
48.
Characteristic impedance of a transmission line is 50 Ω. Input impedance of the open circuited line.
Zoc = 100 + J150 Ω. When transmission line is short circuited, then value of the input impedance will be
Zoc = 100 + J150 Ω. When transmission line is short circuited, then value of the input impedance will be
Answer: Option
Explanation:
ZC = ZOC - ZSC 
50 = (100 + j150)(ZSC) .
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers