AC Circuit Analysis and Passive Filters - Electrical Circuits - Biomedical Engineering Previous Year Questions

1

2020 · Biomedical Engineering · Electrical Circuits · AC Circuit Analysis and Passive Filters

Biomedical Engineering (BM) 2020

Two loads are connected to AC supply mains as depicted in the figure. One load draws 10 kW whereas the other load of 10 kVA is operated at 0.6 pf lagging. To achieve an overall power factor of 0.9544 lagging, the nearest kVAR rating of the capacitor bank needed to be connected across the supply mains is equal to

A

3

B

5

C

7

D

9

Open complete paper

2

2023 · Biomedical Engineering · Electrical Circuits · AC Circuit Analysis and Passive Filters

Biomedical Engineering (BM) 2023

In the circuit shown below, the amplitudes of the voltage across the resistor and the capacitor are equal. What is the value of the angular frequency \( \omega_0 \) (in rad/s)? (Round off the answer to one decimal place.)

Check answer

Open complete paper

3

2024 · Biomedical Engineering · Electrical Circuits · AC Circuit Analysis and Passive Filters

Biomedical Engineering (BM) 2024

The source in the figure is a current source and the circuit is in steady state. At \(t = 0.5\pi\) seconds, the value of \(v\) in the circuit given below is ______ volts. Give your answer rounded off to 2 decimal digits.

Check answer

Open complete paper

4

2024 · Biomedical Engineering · Electrical Circuits · AC Circuit Analysis and Passive Filters

Biomedical Engineering (BM) 2024

In the figure below, the Fourier series of \(v(t)\), in volts, is given as: \[ v(t) = v_0 + 2\cos(\omega_0 t) + 5\cos(3\omega_0 t) + \cos(5\omega_0 t) \] The capacitor is a short circuit for all AC signals. The power absorbed by the \(1\Omega\) resistor is ______ W. Give your answer rounded off to the nearest integer.

Check answer

Open complete paper

5

2025 · Biomedical Engineering · Electrical Circuits · AC Circuit Analysis and Passive Filters

Biomedical Engineering (BM) 2025

A voltage source \( V_s = 5\sin \left( 100t + \frac{\pi}{2} \right) \) volts is driving a current \( I = 10 \sin \left( 100t + \frac{\pi}{6} \right) \) mA through a circuit.
The average power dissipated in the circuit is __________ mW.

A

0.0

B

12.5

C

25.0

D

50.0

Open complete paper

6

2025 · Biomedical Engineering · Electrical Circuits · AC Circuit Analysis and Passive Filters

Biomedical Engineering (BM) 2025

In the circuit shown below, Vin =10cos(1000t) volts. The magnitude of the input impedance of the circuit is __________ kΩ. (rounded off to one decimal place)

A

5.0

B

3.5

C

6.0

D

4.5

Open complete paper