21. Find the capacitor voltage that is associated with the current shown graphically v(t) (V) 8 t(ms) 01 2 3 4

A capacitor can be used .............................................. in electrical circuits. Which of the followings fit?   To regulate the currents To regulate the voltages To store energy by deposition of electric charges To provide energy as passive circuit element To store energy in the form of magnetic field To create time varying voltages and currents To dissipate energy To convert elektrik energy into heat or light

1. What impedance vector 0 – j22 represents:A. A pure resistance.B. A pure inductance.C. A pure capacitance.D. An inductance combined with a resistance.

Find the voltage across and the current through the capacitor both at =20μSec Please try some part in typing format...

A 10-9.F capacitor (1 nanofarad) is charged to 50 V and then disconnected. One can model the charge leakage of the capacitor with a RC circuit with no voltage source and the resistance of the air between the capacitor plates. On a cold dry day, the resistance of the air gap is 3× 1018 2, on a humid day, the resistance is 6 × 10° 2. How long will it take the capacitor voltage to dissipate to half its original value on each day? ... On the dry day, it will take seconds.

If we assume the peak voltage Vmax across the capacitor is 16V and the capacitor discharges into the resistor for 12msec, what is the time constant (in milliseconds) of the circuit during the discharge?

Determine the total capacitance, total charge, individual voltage drop and charges across each capacitor. Use two decimal places for your answer. Put your answer for the individual voltage and charge for each capacitor in a table for faster checking. Thank you! Here are the values for the capacitors: C1 = 55 C6 = 50 C2 = 25 C7 = 17 C3 = 49 C8 = 44 C4 = 22 C9 = 53 C5 = 45 C10 = 44

1. Find the voltages across the following components (a and b) after 1 second. The Capacitor is initially charged at 10V while the voltage source is 1V. Resistor R is 103 ohm while capacitor C is 1mF. a. Capacitor C b. Resistor R c. What is the best 1st order DE Method applicable to this problem?

A capacitor in series with a 200 ohms resistor draws a current of 0.3 ampere from 120 volts, 60 hz source. What is the value of the capacitor in microfarad? a. 8.7 b. 9.7 c. 6.7 d. 7.7

What is a capacitor and how do they work? What is it about capacitors that make them unique? What is the formula for one time constant? How many time constants does it take to fully charge a capacitor? Show illustrations. What other electronic component(s) are commonly found with a capacitor…especially in timing circuits? What types of capacitors are there? What are the formulas for series and parallel capacitors? If three 30 uF capacitors were connected in parallel what would the net capacity be? How about the net value if the capacitors in Q7 were connected in series? If you were to connect a 5K-ohm resistor in series as in Q7… what would the first time constant be? What about time to full charge? Describe the difference between AC (alternating current) and DC (direct current). Use illustrations. Why is voltage generated and distributed in AC? What type of circuit(s) would change AC to DC? How about DC to AC?