this is solution ,why don't use source 4u(-t) ?Could it perhaps be the impulse notation?
All you have to do is understand what the unit step function is.hello everyone
what is mean the source 4u(-t)? why t in negative?
Hi,This attachment might be of interest. Supports MrAl's interpretation.
The 24/s voltage source can be interpreted as the consequence of the 4u (-t) current source pre-charging the capacitor in conjunction with the two resistors which have an initial total voltage drop of 24V @ t <0.
View attachment 76602
by Jake Hertz
by Jake Hertz
by Jake Hertz
by Jake Hertz