Govt Exams Mock Test FREE | Online Quiz Competition

Q1. In the differential voltage gain & the common mode voltage gain of a differential amplifierare 48db & 2db respectively, then its common mode rejection ratio is

23dB

25dB

46dB

50dB

Q2. In voltage divider bias, \(V_{CC} = 25\: V;\: R_1 = 10\: k\Omega;\: R_2 = 3.3 \: k\Omega; \:R_C = 2 \: k\Omega;\) and \(R_E =1\: k\Omega\). What is the collector current?

6.2 mA

5.5 mA

4.5 mA

3.6 mA

Q3. Let a typical audio amplifier have a transfer function \(G(j\omega) = 10 / (1 + j\omega/100)\)

Male voice will be more attenuated than that of the female

Female voice will be more attenuated than that of the male

Both male and female voice will be distorted by equal amount

Only the female voice will be distorted

Q4. An n- channel JFET has \(V_p = -6 \:v\), and \(g_m = 0.25 \: mA/V\). What will be the value of \(I_{DSS}\) for an applied gate to source voltage \(V_{GS} = - 3 V\) ?

\(2 \:mA\)

\(1.5 \:mA\)

\(2.5 \:mA\)

\(3 \:mA\)

Q5. The main advantages of Schotky devices is its least

propagation delay time

noise immunity

fan-in

power dissipation

Q6. If the \(f_T\) of a transistor use in a certain amplifier is 75 MHz and the bandwidth is 10 MHz, the voltage gain must be

750

7.5

10

1

Q7. Guard driving reduces the

CMRR of an Intrumentation Amplifier

Leakage current in the shielded cable

Voltage gain of the first stage

Common-mode input voltage

Q8. A dc power supply has no-load voltage of 30 V,and a full-load voltage of 25 V at full-load current of 1 A.Its output resistance & load regulation ,respectively are

5 Ω & 20 %

25 Ω & 20 %

5 Ω & 16.7 %

25 Ω & 16.7 %

Q9. The DC current gain of a transistor \(\beta_{dc}\) is designated with an equivalent hybrid parameter as

\(h_{ie}\)

\(h_{re}\)

\(h_{fe}\)

\(h_{oe}\)

Q10. For emitter bias, the voltage at the emitter is 0.7 V less than the

Base voltage.

Emitter voltage

Collector voltage

Ground voltage

Quiz

Year 2024

February
Week # 3 Quiz 3

Q1. In the differential voltage gain & the common mode voltage gain of a differential amplifierare 48db & 2db respectively, then its common mode rejection ratio is

Q2. In voltage divider bias, \(V_{CC} = 25\: V;\: R_1 = 10\: k\Omega;\: R_2 = 3.3 \: k\Omega; \:R_C = 2 \: k\Omega;\) and \(R_E =1\: k\Omega\). What is the collector current?

Q3. Let a typical audio amplifier have a transfer function \(G(j\omega) = 10 / (1 + j\omega/100)\)

Q4. An n- channel JFET has \(V_p = -6 \:v\), and \(g_m = 0.25 \: mA/V\). What will be the value of \(I_{DSS}\) for an applied gate to source voltage \(V_{GS} = - 3 V\) ?

Q5. The main advantages of Schotky devices is its least

Q6. If the \(f_T\) of a transistor use in a certain amplifier is 75 MHz and the bandwidth is 10 MHz, the voltage gain must be

Q7. Guard driving reduces the

Q8. A dc power supply has no-load voltage of 30 V,and a full-load voltage of 25 V at full-load current of 1 A.Its output resistance & load regulation ,respectively are

Q9. The DC current gain of a transistor \(\beta_{dc}\) is designated with an equivalent hybrid parameter as

Q10. For emitter bias, the voltage at the emitter is 0.7 V less than the

Quiz

Year 2024

July Week # 1 Expire on 31 Jul 2024

July Week # 2 Expire on 07 Aug 2024

July Week # 3 Expire on 14 Aug 2024

July Week # 4 Expire on 21 Aug 2024

February Week # 3 Quiz 3

Q1. In the differential voltage gain & the common mode voltage gain of a differential amplifierare 48db & 2db respectively, then its common mode rejection ratio is

Q2. In voltage divider bias, \(V_{CC} = 25\: V;\: R_1 = 10\: k\Omega;\: R_2 = 3.3 \: k\Omega; \:R_C = 2 \: k\Omega;\) and \(R_E =1\: k\Omega\). What is the collector current?

Q3. Let a typical audio amplifier have a transfer function \(G(j\omega) = 10 / (1 + j\omega/100)\)

Q4. An n- channel JFET has \(V_p = -6 \:v\), and \(g_m = 0.25 \: mA/V\). What will be the value of \(I_{DSS}\) for an applied gate to source voltage \(V_{GS} = - 3 V\) ?

Q5. The main advantages of Schotky devices is its least

Q6. If the \(f_T\) of a transistor use in a certain amplifier is 75 MHz and the bandwidth is 10 MHz, the voltage gain must be

Q7. Guard driving reduces the

Q8. A dc power supply has no-load voltage of 30 V,and a full-load voltage of 25 V at full-load current of 1 A.Its output resistance & load regulation ,respectively are

Q9. The DC current gain of a transistor \(\beta_{dc}\) is designated with an equivalent hybrid parameter as

Q10. For emitter bias, the voltage at the emitter is 0.7 V less than the

Record & Track Your Performance

February
Week # 3 Quiz 3