AC Power in RC Circuits Quiz

What components are used in the RC circuit discussed in the video?

• A 50 ohm resistor and a 5 microfarad capacitor

• A 100 ohm resistor and a 10 microfarad capacitor

• A 200 ohm resistor and a 20 microfarad capacitor

• A 150 ohm resistor and a 15 microfarad capacitor

How is the capacitive reactance calculated in the circuit?

• 1 over frequency times capacitance

• 1 over 2 times pi times frequency times capacitance

• 1 over 2 times pi times frequency times resistance

• 1 over resistance times capacitance

What is the formula used to calculate the circuit impedance?

• Z = R + XC

• Z = R - XC

• Z = R * XC

• Z = sqrt(R^2 + XC^2)

What is the RMS voltage if the maximum voltage is 230 volts?

• 115 volts

• 163 volts

• 193 volts

• 230 volts

How is the RMS current calculated in an AC circuit?

• RMS voltage divided by impedance

• Maximum voltage divided by impedance

• RMS voltage divided by resistance

• Maximum voltage divided by resistance

What is the power factor of the circuit?

• 0.715

• 0.615

• 0.515

• 0.815

How is the phase angle calculated using the impedance triangle?

• Using tangent of the angle

• Using cosine of the angle

• Using sine of the angle

• Using secant of the angle

What is the real power of the circuit if the RMS voltage is 163 volts and RMS current is 0.67 amperes?

• 109 watts

• 67 watts

• 86 watts

• 150 watts

What is the unit of reactive power?

• Volt-amperes reactive (VAR)

• Watts

• Joules

• Volt-amperes

How is apparent power calculated using the power triangle?

• Square root of real power squared plus reactive power squared

• Product of real power and reactive power

• Sum of real power and reactive power

• Difference between real power and reactive power