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Homework Statement
2. The voltage and current at the terminals of the circuit element in Fig. 1 are zero for t<0. For t>0 they are
V= e^(-500*t)-e^(-1500*t) V
i= 30-40e^(-500*t)+10e^(-1500*t) mA
a) Find the power at t = 1 ms.
b) How much energy is delivered to the circuit element between 0 and 1 ms?
c) Find the total energy delivered to the element.
Figure 1. An ideal basic circuit element
Homework Equations
P=V*i
W=integral (P dt)
The Attempt at a Solution
i solved part a by simple substituting the time in both V and i equations then i multipled them giving me a result of 3.1 W, in the second part i used the integral where i substitued the answer i got in the previous part and set the integral to be from 0 to 1 ms but it turns to be wrong !
need your help tanx in advance