A transistor is used as an amplifier in \( C B \) mode with a load resistance of \( 5 \mathrm{k}...

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A transistor is used as an amplifier in \( C B \) mode with a load resistance of \( 5 \mathrm{k} \Omega \) the current gain of amplifier is 0.98 and the input resistance is \( 70 \Omega \) the voltage gain and power gain respectively are
(a) \( 70,68.6 \)
(b) \( 80,75.6 \)
(c) \( 60,66.6 \)
(d) \( 90,96.6 \)
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