# I REALLY NEED AN ENGINERRING EXPERT….I HAVE A SECOND CHANCE TO GET THIS ASSIGNMENT CORRECT!

Fundamental Properties of AC Circuits/Lab

# Capacitance and Capacitive Reactance

1. How much charge (Q) is stored in a 5uF capacitor connected across a 70V supply?
2. How much charge (Q) is stored in a 20uF capacitor connected across a 70V supply?
3. For a constant supply voltage and an increasing value of capacitance, what is the effect on the amount of charge (Q)? Explain your reasoning.
4. For a constant supply voltage and a decreasing value of capacitance, what is the effect on the amount of charge (Q)?
5. For 50kV applied across a 250pF capacitor, what is the stored energy?
6. For a fixed frequency of f= 200Hz and the values of C below, determine XC:
1. C = 1.0uF Xc = ?
2. C = 0.5uF Xc = ?
3. C = 0.2uF Xc = ?
4. C = 0.1uF Xc = ?
7. Determine the following:
1. XcT for two capacitors in series with the values Xc1 = 300ohms and Xc2 = 400ohms
2. XcEQ for three capacitors in parallel with the values Xc1 = 100ohms, Xc2 = 400ohms and Xc3 = 200ohms
8. For the circuits below, determine CEQ and CT respectively:  