AC Capacitive Reactance Quiz

What components make up the RC circuit discussed in the video?

• Capacitor and inductor

• Resistor and diode

• Resistor and capacitor

• Resistor and inductor

How is the capacitive reactance calculated?

• Using the formula 1/(2πfC)

• Using the formula R + XC

• Using the formula V/I

• Using the formula 2πfC

What is the impedance of the circuit if the resistance is 150 ohms and the capacitive reactance is 193 ohms?

• 343 ohms

• 193 ohms

• 150 ohms

• 244 ohms

Which law is used to determine the current through the circuit?

• Ohm's Law

• Coulomb's Law

• Kirchhoff's Law

• Faraday's Law

What is the current through the circuit if the voltage is 230 volts and the impedance is 244 ohms?

• 2.3 A

• 0.5 A

• 1.5 A

• 0.94 A

What is the voltage drop across the resistor if the current is 0.94 A and the resistance is 150 ohms?

• 182 volts

• 94 volts

• 230 volts

• 144 volts

According to Kirchhoff's laws, what should the sum of the voltage drops equal?

• The total impedance

• The total voltage gain

• The total resistance

• The total current

In a capacitive circuit, how does the voltage across the capacitor relate to the current?

• It lags the current by 90 degrees

• It is opposite to the current

• It is in phase with the current

• It leads the current by 90 degrees

What trigonometric function is typically used to calculate the phase angle in the circuit?

• Sine

• Cosine

• Cotangent

• Tangent

What is the phase angle by which the voltage lags the current in the circuit?

• 45 degrees

• 30 degrees

• 52 degrees

• 60 degrees