The common mode gain is ___________

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

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

r_e

B

2r_e

C

$$\frac{{{{\text{r}}_{\text{e}}}}}{2}$$

D

2R_E

The common mode voltage gain is

A

smaller than differentail voltage gain

B

equal to differential voltage gain

C

greater than differential voltage gain

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

The gain of an amplifier with feedback is known as ___________ gain

A

Resonant

B

Open loop

C

Closed loop

D

None of the above

In the common mode, ___________

A

both inputs are grounded

B

the outputs are connected together

C

an identical signal appears on both the inputs

D

the output signal are in-phase

A common mode signal is applied to ___________

A

the noninverting input

B

the inverting input

C

both iputs

D

top of the tail resistor

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

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%

The common mode gain is ___________

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