Electronics and Communication Engineering - Electromagnetic Field Theory - Discussion

8. 

Find the radiation resistance of an antenna of length λ/10 meter?

[A]. 8 Ω
[B]. 780 Ω
[C]. 7.8 Ω
[D]. 78 Ω

Answer: Option C

Explanation:

.


Dinakar said: (May 20, 2016)  
How 0.8? But in option it's 7.8?

Gagana said: (Oct 12, 2016)  
Since the value of pi is 3.14, substitute it in place of, then you will get.

Lakshmi said: (Jul 24, 2017)  
80(3.14)^2.(10) answer 7.8.

Sunni said: (Sep 14, 2017)  
This is which type antenna?

Prasad said: (Sep 27, 2017)  
80/10 is 8 so 8*π2 answer will be 78.

Hafeela said: (Jun 22, 2020)  
80/100*3.14^2 = 7.8.

There is (dl/&lamda;)^2.

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