BEE FREE Bachelor of Electrical Engineering Electric Circuits Questions and Answers 2

Question 1

A 10 V source is connected across two parallel resistors of 4 ohms and 12 ohms. What is the total current drawn from the source?

Accepted Answer

3.33 A

Answer

2.50 A

Answer

1.67 A

Answer

4.00 A

Question 2

In a series RLC circuit at resonance, which of the following is true?

Accepted Answer

The impedance is purely resistive

Answer

The impedance is at its maximum value

Answer

The current is at its minimum value

Answer

The phase angle is 90 degrees

Question 3

What is the time constant of a series RC circuit with R = 2 k-ohms and C = 50 microfarads?

Accepted Answer

0.1 seconds

Answer

0.01 seconds

Answer

1 second

Answer

0.5 seconds

Question 4

A node in an electric circuit has three currents: 5 A entering, 3 A entering, and one unknown current leaving. What is the unknown current?

Accepted Answer

8 A leaving

Answer

2 A leaving

Answer

5 A leaving

Answer

3 A leaving

Question 5

What is the maximum power transfer condition for a DC circuit with a source resistance of 50 ohms?

Accepted Answer

Load resistance equals 50 ohms

Answer

Load resistance equals 100 ohms

Answer

Load resistance equals 25 ohms

Answer

Load resistance is infinite

Question 6

A capacitor of 100 microfarads is charged to 20 V. What is the energy stored in the capacitor?

Accepted Answer

0.02 J

Answer

0.2 J

Answer

2 J

Answer

0.002 J