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A common-source amplifier with a drain resistance, $R_{D}=4.7\:k\Omega$, is powered

using a $10\:V$ power supply. Assuming that the transconductance, $_{m}$, is 

$520\:\mu A/V$, the voltage gain of the amplifier is closest to:

  1. $-2.44$
  2. $-1.22$
  3. $1.22$
  4. $2.44$
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