1.

A transistor is used as an amplifier in CB mode with a load resistance of 5 k W the current gain of amplifier is 0.98 and the input resistance is 70 W, the voltage gain and power gain respectively are                                             [Pb. PET 2003]

A.            70, 68.6                                   
B.            80, 75.6
C.            60, 66.6                                   
D.            90, 96.6
Answer» B.            80, 75.6


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