RLC Circuit Quiz

In a series RLC circuit, at resonance, the impedance is:

• Maximum

• Minimum

• Zero

• Infinite

What is the unit of reactance?

• Ohm

• Farad

• Henry

• Volt

What is the power factor of a purely resistive circuit?

• 0

• 0.5

• 1

• -1

In a parallel RLC circuit, at resonance, the admittance is:

• Maximum

• Minimum

• Zero

• Infinite

What is the formula for calculating the quality factor (Q) of a series RLC circuit?

• ( Q = \frac{\omega_0 L}{R} )

• ( Q = \frac{R}{\omega_0 L} )

• ( Q = \frac{\omega_0 R}{L} )

• ( Q = \frac{L}{\omega_0 R} )

What is the phase angle between voltage and current in a purely capacitive circuit?

• 0 degrees

• 45 degrees

• 90 degrees

• 180 degrees

What is the effect of increasing the frequency on the inductive reactance of an inductor?

• Decreases

• Increases

• Remains constant

• Becomes zero

What is the formula for calculating the total impedance in a series RLC circuit?

• ( Z = \sqrt{R^2 + (X_L - X_C)^2} )

• ( Z = R + X_L + X_C )

• ( Z = \frac{R}{\sqrt{X_L^2 + X_C^2}} )

• ( Z = \sqrt{R^2 + X_L^2 + X_C^2} )

What is the power factor of a purely inductive circuit?

• 0

• 0.5

• 1

• -1

In a transmission line, what is the primary purpose of using high voltages?

• To reduce power loss

• To increase current flow

• To reduce resistance

• To increase power factor