Version B
EECE 260 Electrical Circuits Midterm Exam #2 Spring 2008
Prof. Fowler
Closed Book & Notes Allowed one 8.5 x 11 sheet of notes
To Get Credit: 1. Must show work 2. Steps must be logical and descriptive
Version B
Questions (each worth 5 p
Q: 1st Order Circuits: Find , Initial Value v 0 or i0 , Final Value v or i 1. Find Find the RTh for the 1st order circuit at t > 0 Turn off all the Sources Voltage Source Short Circuit (Wire) Current Source Open Circuit (Removed Wire) Remov
Q: Determine the Differential Equation for Response ( v R t OR i R t ) in the circuit for t > 0. First thing you should do is LABEL all the Voltages and Currents in the circuit, use the following Notation: Resistor Voltage Current v R t i R t Capacit
Q: Determine the Initial Conditions for the 2nd Order Circuits. Step 1
v 0 i0 d v 0 d i0 or dt dt
First thing you need to determine is the Capacitor Voltage and the Inductor Current at time t=0- (Before the switch is closed/opened), namely v C