Govt Exams Mock Test FREE | Online Quiz Competition

Q1. 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

Q2. If \(\alpha = 0.98\) , \(I_{C} = 5 \: mA\) and \(I_B = 100\: \mu A\) for a transistor, then the value of \(I_{CO}\) will be

\(20 \:\mu A\)

\(100 \:\mu A\)

\(2 \:\mu A\)

\(6 \:\mu A\)

Q3. In voltage divider bias, \(V_{CC} = 20\: V;\: R_1 = 10\: k\Omega;\: R_2 = 3.3 \: k\Omega; \:R_C = 3 \: k\Omega;\) and \(R_E =1.5\: k\Omega\). What is the emitter voltage?

4.96 V

5.66 V

3.8 V

4.26 V

Q4. Find the output voltage in the following circuit:

\(250\:mV\)

\(-25\:mV\)

\(25\:mV\)

\(-250\:mV\)

Q5. Which of the following is not necessarily the advantage of a push pull amplifier?

It gives more output

There is no effect of ripple of the power supply

It consumes least power

It removes odd as well as even harmonics

Q6. An pulse width of retriggerable monostable multivibrator can be controlled

Frequency of trigger pulse

External resistance and capacitor

Amplitude of trigger pulse

None of these

Q7. A non-triggerable monostable multivibrator has \(R_{ext} = 10\: K\Omega\) and \(C_{ext} = 0.01 \:\mu F\). It’s pulse-width will be

0.7ms

0.6ms

0.07ms

0.06ms

Q8. In the feedback network shown below, if the feedback factor k is increased, then the

input impedance increases and output impedance decreases

input impedance increases and output impedance also increases

input impedance decreases and output impedance also decreases

input impedance decreases and output impedance increases

Q9. Find the minimum input voltage required for the following voltage regulator circuit with output voltage of 10 V if minimum Zener current is 0.5 mA.

10 V

10.55 V

10.11 V

10.22 V

Q10. The lower critical frequency of a direct-coupled amplifier with no bypass capacitor is

Variable

0 Hz

Depend on the bias

None of these

Quiz

Year 2024

January
Week # 3 Quiz 3

Q1. 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

Q2. If \(\alpha = 0.98\) , \(I_{C} = 5 \: mA\) and \(I_B = 100\: \mu A\) for a transistor, then the value of \(I_{CO}\) will be

Q3. In voltage divider bias, \(V_{CC} = 20\: V;\: R_1 = 10\: k\Omega;\: R_2 = 3.3 \: k\Omega; \:R_C = 3 \: k\Omega;\) and \(R_E =1.5\: k\Omega\). What is the emitter voltage?

Q4. Find the output voltage in the following circuit:

Q5. Which of the following is not necessarily the advantage of a push pull amplifier?

Q6. An pulse width of retriggerable monostable multivibrator can be controlled

Q7. A non-triggerable monostable multivibrator has \(R_{ext} = 10\: K\Omega\) and \(C_{ext} = 0.01 \:\mu F\). It’s pulse-width will be

Q8. In the feedback network shown below, if the feedback factor k is increased, then the

Q9. Find the minimum input voltage required for the following voltage regulator circuit with output voltage of 10 V if minimum Zener current is 0.5 mA.

Q10. The lower critical frequency of a direct-coupled amplifier with no bypass capacitor is

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

January Week # 3 Quiz 3

Q1. 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

Q2. If \(\alpha = 0.98\) , \(I_{C} = 5 \: mA\) and \(I_B = 100\: \mu A\) for a transistor, then the value of \(I_{CO}\) will be

Q3. In voltage divider bias, \(V_{CC} = 20\: V;\: R_1 = 10\: k\Omega;\: R_2 = 3.3 \: k\Omega; \:R_C = 3 \: k\Omega;\) and \(R_E =1.5\: k\Omega\). What is the emitter voltage?

Q4. Find the output voltage in the following circuit:

Q5. Which of the following is not necessarily the advantage of a push pull amplifier?

Q6. An pulse width of retriggerable monostable multivibrator can be controlled

Q7. A non-triggerable monostable multivibrator has \(R_{ext} = 10\: K\Omega\) and \(C_{ext} = 0.01 \:\mu F\). It’s pulse-width will be

Q8. In the feedback network shown below, if the feedback factor k is increased, then the

Q9. Find the minimum input voltage required for the following voltage regulator circuit with output voltage of 10 V if minimum Zener current is 0.5 mA.

Q10. The lower critical frequency of a direct-coupled amplifier with no bypass capacitor is

Record & Track Your Performance

January
Week # 3 Quiz 3

Q1. 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