Hello. I would need some clarifications about the impulse response of a RC circuit. 1. The problem statement, all variables and given/known data Find the impulse response relative to the vc(t) voltage. NOTE: delta(t) is the exact dirac's delta of infinite amplitude, not an approximated peak. 2. Relevant equations δ(t) = d θ(t) / dt 3. The attempt at a solution First of all I have a doubt of theoretical nature. If we know that capacitor's voltage is a continuous function (vc(0-) = vc(0+), and know that vc = 0 for t < 0, how can voltage change? Shouldn't it remain 0 for the impulse duration, considering the circuit completely ideal? Anyway, is it correct to consider the impulse source as a step one, and then derivate the function? Specifically talking, I found the Thevenin equivalent between a and b, and it comes out: Rth = 1,6344 Ω Vth = -0.3313 V Then I calculate the step response as: vcθ(t) = -0.3323 θ(t) (1 - e-t/1.6344) From here is it correct to just derivate this function to get the impulse response? vcδ(t) = -0.3323/1.6344 e-t/1.6344 Thank you very much.