Antenna & Wave Propagation - Electronic Engineering (MCQ) questions & answers for Q. 12683

Q.  If an antenna draws 12 A current and radiates 4 kW, then what will be its radiation resistance?
- Published on 01 Oct 15

a. 22.22 ohm
b. 27.77 ohm
c. 33.33 ohm
d. 39.77 ohm

ANSWER: 27.77 ohm
 

    Discussion

  • pathamuthu   -Posted on 24 Oct 16
    good help
  • ABHISHEK   -Posted on 20 Jul 16
    P=I2R;
    R=P/I2
    R=4K/144=27.77 OHMS

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