- #1

Tekneek

- 70

- 0

## Homework Statement

For second order circuits, do you apply kcl/kvl in the circuit when the switch is open or closed to find the differential equation for complimentary solution?

For example for the circuit attached (the circuit has been operating for a long time with switch closed prior to t=0), applying kcl at the node after adding the two resistors in the parallel:

i

_{L}+ V(t)/0.6kohms + [V(t)-V

_{C}(t)]/3kohms = 0

Not sure what to do after this (lets say if i want to find current in inductor when t>0)