Govt Exams Mock Test FREE | Online Quiz Competition

Q1. Under low level injection assumption, the injected minority carrier current for an extrinsic semiconductor is essentially the

Diffusion current

Drift current

Recombination current

Induced current

Q2. A silicon transistor is biased with base resistor method. If \(\beta = 100, \:V_{BE} =0.7 V,\) zero signal collector current \(I_C = 2\: mA\) and\( V_{CC} = 10V\) , what is the value of the base resistor\( R_B\)?

\(105 k\Omega\)

\(530 k\Omega\)

\(465 k\Omega\)

\(315 k\Omega\)

Q3. 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

Q4. An amplifier without feedback has a voltage gain of 100, input resistance of \(10\:K\Omega\) & Output resistance of \(3\:K\Omega\). The input resistance and output resistance of the voltage-series negative feedback amplifier using the above amplifier with a feedback factor of 0.6 is

\(\frac{10}{61}\: K\Omega\) and \(183\: K\Omega\)

\(\frac{10}{61}\: K\Omega\) and \(\frac{3}{61}\: K\Omega\)

\(0.6\: K\Omega\) and \(\frac{3}{6}\: K\Omega\)

\(610\: K\Omega\) and \(\frac{3}{61}\: K\Omega\)

Q5. For a transistor connected in common base connection, collector current is 0.95 mA and base current is 0.05 mA. Find the value of \(\alpha\):

1.00

0.5

0.95

0.05

Q6. The instantaneous operating point swings along

The DC load line

The AC load line

Both load lines

Neither load line

Q7. A non-inverting closed-loop op-amp circuit generally has a gain factor

Less than one

Greater than one

Zero

1

Q8. A signal generator should have

High Input Impedance

High Output Impedance

Matching Output Impedance

Small Input Impedance

Q9. An n- channel JFET has \(I_{DSS} = 2 \:mA\),and \(V_p = -4 \:v\). Its transconductance \(g_m\) in \((mA/V)\) for an applied gate to source voltage \(V_{GS} = - 2 V\) is

1

0.25

0.75

0.5

Q10. How many op-amp will ne required to implement this equation?

\(V_o =-\big [\frac{R_f}{R_1}V_1 +\frac{R_f}{R_2}V_2 + \frac{R_f}{R_3}V_3 \big ]\)

2

3

4

1

Quiz

Year 2024

August
Week # 3 Quiz 3

Q1. Under low level injection assumption, the injected minority carrier current for an extrinsic semiconductor is essentially the

Q2. A silicon transistor is biased with base resistor method. If \(\beta = 100, \:V_{BE} =0.7 V,\) zero signal collector current \(I_C = 2\: mA\) and\( V_{CC} = 10V\) , what is the value of the base resistor\( R_B\)?

Q3. 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?

Q4. An amplifier without feedback has a voltage gain of 100, input resistance of \(10\:K\Omega\) & Output resistance of \(3\:K\Omega\). The input resistance and output resistance of the voltage-series negative feedback amplifier using the above amplifier with a feedback factor of 0.6 is

Q5. For a transistor connected in common base connection, collector current is 0.95 mA and base current is 0.05 mA. Find the value of \(\alpha\):

Q6. The instantaneous operating point swings along

Q7. A non-inverting closed-loop op-amp circuit generally has a gain factor

Q8. A signal generator should have

Q9. An n- channel JFET has \(I_{DSS} = 2 \:mA\),and \(V_p = -4 \:v\). Its transconductance \(g_m\) in \((mA/V)\) for an applied gate to source voltage \(V_{GS} = - 2 V\) is

Q10. How many op-amp will ne required to implement this equation?

\(V_o =-\big [\frac{R_f}{R_1}V_1 +\frac{R_f}{R_2}V_2 + \frac{R_f}{R_3}V_3 \big ]\)

Quiz

Year 2024

August Week # 4 Expire on 21 Sep 2024

September Week # 1 Expire on 30 Sep 2024

September Week # 2 Expire on 07 Oct 2024

September Week # 3 Expire on 14 Oct 2024

August Week # 3 Quiz 3

Q1. Under low level injection assumption, the injected minority carrier current for an extrinsic semiconductor is essentially the

Q2. A silicon transistor is biased with base resistor method. If \(\beta = 100, \:V_{BE} =0.7 V,\) zero signal collector current \(I_C = 2\: mA\) and\( V_{CC} = 10V\) , what is the value of the base resistor\( R_B\)?

Q3. 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?

Q4. An amplifier without feedback has a voltage gain of 100, input resistance of \(10\:K\Omega\) & Output resistance of \(3\:K\Omega\). The input resistance and output resistance of the voltage-series negative feedback amplifier using the above amplifier with a feedback factor of 0.6 is

Q5. For a transistor connected in common base connection, collector current is 0.95 mA and base current is 0.05 mA. Find the value of \(\alpha\):

Q6. The instantaneous operating point swings along

Q7. A non-inverting closed-loop op-amp circuit generally has a gain factor

Q8. A signal generator should have

Q9. An n- channel JFET has \(I_{DSS} = 2 \:mA\),and \(V_p = -4 \:v\). Its transconductance \(g_m\) in \((mA/V)\) for an applied gate to source voltage \(V_{GS} = - 2 V\) is

Q10. How many op-amp will ne required to implement this equation?\(V_o =-\big [\frac{R_f}{R_1}V_1 +\frac{R_f}{R_2}V_2 + \frac{R_f}{R_3}V_3 \big ]\)

Record & Track Your Performance

August
Week # 3 Quiz 3

Q10. How many op-amp will ne required to implement this equation?

\(V_o =-\big [\frac{R_f}{R_1}V_1 +\frac{R_f}{R_2}V_2 + \frac{R_f}{R_3}V_3 \big ]\)