The voltage gain and the current amplification factor of a transistor in common emitter configuration are $300$ and $60$ respectively. If the collector resistance is $5 \, k\Omega$, then the base resistance is:

  • A
    $5 \, k\Omega$
  • B
    $25 \, k\Omega$
  • C
    $2 \, k\Omega$
  • D
    $1 \, k\Omega$

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In a transistor,in common emitter configuration,the ratio of power gain to voltage gain is

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