PHY Pre-Lab AC Circuits Name:
Inductance Given vR = RI sin(wt)					Capacitance T / F Capacitance is measured as a unit of charge per unit volt T / F Capacitance is measured as a unit of energy T / F VC = - wC I cos (wt)
1. Inductive reactance is equal to a. Δi / Δt b. L Δi / Δt c. Δt L d. w L e. None of these		2. Units of Inductive reactance 3. T / F VL = wL I cos(wt)
7. The phase angle of the voltage across a resistor is how far out of phase with the current? a. 0˚ b. 90˚ c. -90˚ d. 180˚ e. -180			8. The phase angle of the voltage across a capacitor is how far out of phase with the current? a. 0˚ b. 90˚ c. -90˚ d. 180˚ e. -180			Note: If leads, use positive, if lags use negative		9. The phase angle of the voltage across an inductor is how far out of phase with the current? a. 0˚ b. 90˚ c. -90˚ d. 180˚ e. -180˚
10. What does the below L-C circuit represent? (starts with either a fully charged inductor or capacitor)				Summarizing equation 5 we have vRLC = RI sin(ωt) + XL Icos(ωt) – XC Icos(ωt) which simplifies in eq 11 & 12
				|Z| = √ [R^2 + (XL – XC)^2] Given the following fill in the graph and calculate Φ XL = 2 Ω XC = 4 Ω R = 3 Ω
BONUS: Please identify the components of phasor diagram
A: magnitude of VR B: C: The radius represents ____________ centered at ____________	D: The radius represents ____________ centered at __________ E: The radius represents ___________ centered at ________ F: magnitude of VRLrC Φ: ________________