E5B - Electrical Principles
Extra Class
Time constants and phase relationships: RL and RC circuits
12 questions
What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the applied voltage or to discharge to 36.8% of its initial voltage?
What letter is commonly used to represent susceptance?
How is impedance in polar form converted to an equivalent admittance?
What is the time constant of a circuit having two 220-microfarad capacitors and two 1-megohm resistors, all in parallel?
What is the effect on the magnitude of pure reactance when it is converted to susceptance?
What is susceptance?
What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 500 ohms, R is 1 kilohm, and XL is 250 ohms?
What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 300 ohms, R is 100 ohms, and XL is 100 ohms?
What is the relationship between the AC current through a capacitor and the voltage across a capacitor?
What is the relationship between the AC current through an inductor and the voltage across an inductor?
What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 25 ohms, R is 100 ohms, and XL is 75 ohms?
What is admittance?