Related Questions

If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be
A $$\frac{{\text{X}}}{{\text{Y}}}$$
B X × Y
C X + Y
D X - Y
The common mode voltage gain of a differential amplifier is equal to RC divided by
A re
B 2re
C $$\frac{{{{\text{r}}_{\text{e}}}}}{2}$$
D 2RE
On selling a chair at 7% loss and a table at 17% gain, a man gains Tk 296. If he sells the chair at 7% gain and the table at 12% gain, then he gains Tk. 400. The actual price of the table is ---
A Tk. 2400
B Tk. 2200
C Tk. 1800
D Tk. 1600
The common mode gain is ___________
A very high
B very low
C always unity
D unpredictable
Power gain in decibels is equal to voltage gain in decibels only when
A Input impedance is equal to output impedance
B Output impedance is zero
C Never
D Input impedance is zero
The voltage gain of a transistor connected in common collector arrangement is ___________
A equal to 1
B more than 10
C more than 100
D less than 1
When negative voltage feedback is applied to an amplifier, its voltage gain ___________
A Is increased
B Is reduced
C Remains the same
D None of the above
When drain voltage equals the pinch-off-voltage, then drain current ___________ with the increase in drain voltage
A decreases
B increases
C remains constant
D none of the above
A transistor is connected in CB mode. If it is not connected in CE mode with same bias voltages, the values of IE, IB and IC will ___________
A remain the same
B increase
C decrease
D none of the above
A bookseller can gain 6.666% if he offers a 20% commission on the written selling price of a book. If the commission is reduced to 10% , what will be his gain ?
A 15%
B 10%
C 20%
D 25%

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