Analog Electronics Quiz-1

Transistor biasing is done to keep ………… in the circuit

• Proper direct current

• Proper alternating current

• The base current small

• Collector current small

Operating point represents …………..

• Values of I_C and V_CE when signal is applied

• The magnitude of signal

• Zero signal values of I_C and V_CE

• None of the above

The point of intersection of d.c. and a.c. load lines represents …………..

• Operating point

• Current gain

• Voltage gain

• None of the above

The disadvantage of voltage divider bias is that it has ………….

• High stability factor

• Low base current

• Many resistors

• None of the above

If the temperature increases, the value of V_CE …………

• Remains the same

• Is increased

• Is decreased

• None of the above

The stabilisation of operating point in potential divider method is provided by ……….

• R_E consideration

• R_C consideration

• V_CC consideration

• None of the above

The value of V_BE …………….

• Depends upon I_C to moderate extent

• Is almost independent of I_C

• Is strongly dependant on I_C

• None of the above

Which of the following is the correct relationship between base and emitter current of a BJT?

• IB = β IE

• IB = IE

• IB = (β + 1) IE

• IE = (β + 1) IB

For best operation of a BJT, which region must the operating point be set at?

• Active region

• Cutoff region

• Saturation region

• Reverse active region

From the given circuit, using a silicon transistor, what is the value of I_BQ?

• 47.08 mA

• 47.08 uA

• 50 uA

• 0 mA