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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 6
31.
End fire coupler is formed
when two equal radiators are operated in phase quadrature at a distance of λ/4 apart
when two equal radiators are operated in parallel at a distance of λ/4 apart
when two equal radiators are operated in phase quadrature at a distance of λ/2 apart
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Antenna radiation efficiency can be increased by
reducing radiation resistance of the system
increasing radiation resistance of the system
providing effective earthing
any of the above
Answer: Option
Explanation:
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33.
Divergence of curl A is
∇ . (∇ x A) = 1
∇ . (∇ x A) = 0
∇ . (∇ x A) = ∇
∇ . (∇ x A) = - ∞
Answer: Option
Explanation:
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34.
The energy stored in a magnetic field is given by
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
If reflection coefficient is 1/5, then corresponding VSWR is given by
1
2
3
3/2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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