Govt Exams Mock Test FREE | Online Quiz Competition

Q1. In the circuit shown below, the reading of the ideal ammeter and voltmeter, respectively, will be:

2A and 8V

0A and 8V

0A and 0V

2A and 0V

Q2. A circuit has an inductance of 20H. If the current in the circuit changes at the rate of 50 mA/sec, then self-induced EMF is____________.

100 V

1 V

1000 V

1 mV

Q3. Relative permittivity of mica is 5, then its absolute permittivity of a medium is ________.

\(44.3 \times10^{-11} \:F/m\)

\(4.43 \times10^{-11} \:F/m\)

\(443 \times10^{-11} \:F/m\)

\(4.43 \times10^{-12} \:F/m\)

Q4. A sinusoidal is expressed as \(5 \sin(4\pi t -60^\circ)\). Find the frequency.

2 Hz

50 Hz

60 Hz

20 Hz

Q5. If 5 A current flows through a circuit for 5 minutes, then calculate the total charge.

300 C

1500 C

100 C

25 C

Q6. Determine the value of ‘\(V_s\)’ and ‘\(R\)’ so that the circuits shown as (a) and (b) are equivalent to each other.

\( V_s = 24 \: V,\:\: R=4 \: \Omega \)

\( V_s = 24 \: V,\:\: R=8 \: \Omega \)

\( V_s = 12 \: V,\:\: R=4 \: \Omega \)

\( V_s = 12 \: V,\:\: R=8 \: \Omega \)

Q7. For a sine wave with peak value \(I_{max} \), the r.m.s. value is ______ \(I_{max} \).

0.5

0.707

0.9

1.414

Q8. In a series R-L-C circuit the condition for resonance is

\(X_L=X_C\)

Power factor becomes unity

Circuit becomes resistive

All of above

Q9. Consider the network graph shown in the figure. Which one of the following is NOT a ‘tree’ of this graph?

Q10. Which statements represent the properties of a tree according to the network graph theory?
A1 : There exists only a single path between any pair of nodes.
A2 : The rank of a tree is similar to the rank of graph
A3 : A tree does not contain any node on the graph
A4 : A tree comprises all closed paths

\(A_1\) & \(A_3\)

\(A_3\) & \(A_4\)

\(A_1\) & \(A_2\)

None of the above

Quiz

Year 2025

March
Week # 1 Quiz 2

Q1. In the circuit shown below, the reading of the ideal ammeter and voltmeter, respectively, will be:

Q2. A circuit has an inductance of 20H. If the current in the circuit changes at the rate of 50 mA/sec, then self-induced EMF is____________.

Q3. Relative permittivity of mica is 5, then its absolute permittivity of a medium is ________.

Q4. A sinusoidal is expressed as \(5 \sin(4\pi t -60^\circ)\). Find the frequency.

Q5. If 5 A current flows through a circuit for 5 minutes, then calculate the total charge.

Q6. Determine the value of ‘\(V_s\)’ and ‘\(R\)’ so that the circuits shown as (a) and (b) are equivalent to each other.

Q7. For a sine wave with peak value \(I_{max} \), the r.m.s. value is ______ \(I_{max} \).

Q8. In a series R-L-C circuit the condition for resonance is

Q9. Consider the network graph shown in the figure. Which one of the following is NOT a ‘tree’ of this graph?

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

March Week # 1 Quiz 2

Q1. In the circuit shown below, the reading of the ideal ammeter and voltmeter, respectively, will be:

Q2. A circuit has an inductance of 20H. If the current in the circuit changes at the rate of 50 mA/sec, then self-induced EMF is____________.

Q3. Relative permittivity of mica is 5, then its absolute permittivity of a medium is ________.

Q4. A sinusoidal is expressed as \(5 \sin(4\pi t -60^\circ)\). Find the frequency.

Q5. If 5 A current flows through a circuit for 5 minutes, then calculate the total charge.

Q6. Determine the value of ‘\(V_s\)’ and ‘\(R\)’ so that the circuits shown as (a) and (b) are equivalent to each other.

Q7. For a sine wave with peak value \(I_{max} \), the r.m.s. value is ______ \(I_{max} \).

Q8. In a series R-L-C circuit the condition for resonance is

Q9. Consider the network graph shown in the figure. Which one of the following is NOT a ‘tree’ of this graph?

Record & Track Your Performance

March
Week # 1 Quiz 2