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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. The v-i characteristics of the diode in the circuit shown in the figure is given by
\(i = \begin {cases}\frac{v-0.7}{500}, & v\geq 0.7 V\\0, & v < 0.7 V\end{cases}\)
The current is the circuit in mA is

10

9.3

6.2

6.66

Q3. 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 \(V_{GS} = - 3 V\) ?

\(2 \:mA\)

\(1.5 \:mA\)

\(2.5 \:mA\)

\(3 \:mA\)

Q4. If \(\alpha = 0.975\) , \(I_{CO} = 5 \: \mu A\) and \(I_B = 100\: \mu A\) for a transistor, then the value of \(I_C\) will be

\(4.1 \:mA\)

\(5 \:mA\)

\(41 \:mA\)

\(6.3 \:mA\)

Q5. 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

Q6. What happens if the potentiometer is connected to negative supply?

Output waveform below +V_ref will be clipped off

Output waveform below -V_ref will be clipped off

Output waveform above +V_ref will be clipped off

Output waveform above -V_ref will be clipped off

Q7. Introducing a resistor in the emitter of a common emitter amplifier stabilizes the dc operating point against variations in

Only temperature

Only the β of the transistor

Both temperature and β

None of the above

Q8. In an intrinsic semiconductor Fermi Level lies

In the middle of conduction and valence band

Near conduction band

Near valance band

None of the above

Q9. The collector current is \(2.945 \:mA\) and \(\alpha = 0.98\). The leakage current is \(2\:\mu A\). What is the emitter current and base current?

\(3\:mA\) and \(55 \:\mu A\)

\(2.945\:mA\) and \(55\:\mu A\)

\(3.64\:mA\) and \(33\:\mu A\)

\(5.89\:mA\) and \( 65\:\mu A\)

Q10. The maximum efficiency of full wave rectifier is

20.30%

40.60%

50%

81.20%

Quiz

Year 2025

January
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. The v-i characteristics of the diode in the circuit shown in the figure is given by
\(i = \begin {cases}\frac{v-0.7}{500}, & v\geq 0.7 V\\0, & v < 0.7 V\end{cases}\)
The current is the circuit in mA is

Q3. 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 \(V_{GS} = - 3 V\) ?

Q4. If \(\alpha = 0.975\) , \(I_{CO} = 5 \: \mu A\) and \(I_B = 100\: \mu A\) for a transistor, then the value of \(I_C\) will be

Q5. 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

Q6. What happens if the potentiometer is connected to negative supply?

Q7. Introducing a resistor in the emitter of a common emitter amplifier stabilizes the dc operating point against variations in

Q8. In an intrinsic semiconductor Fermi Level lies

Q9. The collector current is \(2.945 \:mA\) and \(\alpha = 0.98\). The leakage current is \(2\:\mu A\). What is the emitter current and base current?

Q10. The maximum efficiency of full wave rectifier is

Quiz

Year 2025

February Week # 3 Expire on 14 Mar 2025

February Week # 4 Expire on 21 Mar 2025

March Week # 1 Expire on 31 Mar 2025

March Week # 2 Expire on 07 Apr 2025

January 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. The v-i characteristics of the diode in the circuit shown in the figure is given by \(i = \begin {cases}\frac{v-0.7}{500}, & v\geq 0.7 V\\0, & v < 0.7 V\end{cases}\) The current is the circuit in mA is

Q3. 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 \(V_{GS} = - 3 V\) ?

Q4. If \(\alpha = 0.975\) , \(I_{CO} = 5 \: \mu A\) and \(I_B = 100\: \mu A\) for a transistor, then the value of \(I_C\) will be

Q5. 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

Q6. What happens if the potentiometer is connected to negative supply?

Q7. Introducing a resistor in the emitter of a common emitter amplifier stabilizes the dc operating point against variations in

Q8. In an intrinsic semiconductor Fermi Level lies

Q9. The collector current is \(2.945 \:mA\) and \(\alpha = 0.98\). The leakage current is \(2\:\mu A\). What is the emitter current and base current?

Q10. The maximum efficiency of full wave rectifier is

Record & Track Your Performance

January
Week # 3 Quiz 3

Q2. The v-i characteristics of the diode in the circuit shown in the figure is given by
\(i = \begin {cases}\frac{v-0.7}{500}, & v\geq 0.7 V\\0, & v < 0.7 V\end{cases}\)
The current is the circuit in mA is