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Consider a lossless antenna with a directive gain of $+6 \mathrm{~dB}$. If $1 \mathrm{~mW}$ of power is fed to it the total power radiated to the antenna will be

  1. $4 \mathrm{~mW}$
  2. $1 \mathrm{~mW}$
  3. $7 \mathrm{~mW}$
  4. $1 / 4 \mathrm{~mW}$
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