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The power of the transmitter with a radiation resistance of 12 ohm and an antenna current of 3.5A is(a) 147(b) 741(c) 174(d) 471I have been asked this question in homework.This interesting question is from Input and Characteristic Impedances in chapter Transmission Lines of Electromagnetic Theory

Answer» CORRECT choice is (a) 147

The explanation is: The POWER in a transmitter is given by Prad = Iant^2 Rrad. On substituting Irad = 3.5 and Rrad =12, we get Prad = 3.5^2 x 12 = 147 UNITS.


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