I have just started reading the "Basic Engineering Circuit Analysis" book, in the book's chapter 1 problems, I'm trying to resolve the following problem:
My try:
\(w\,(t)=p\,t\)
\(w\,(t)=v\,i\,t
w\,(t)=v\,\left(\frac{q}{t}\right)\,t
w\,(t)=v\,\left(\frac{q}{\cancel{t}}\right)\,\cancel{t}
w\,(t)=v\,q
w\,(t)=\int_{0}^{0.05} \left(120e^{-2t}\right)\,\left(\dfrac {-30e^{-4t}}{1000}\right)\,dt \)(division by 1000 for converting mC to C)
\(w\,(t)=-0.15 J \)
I feel something wrong with my solution. What is that?
My try:
\(w\,(t)=p\,t\)
\(w\,(t)=v\,i\,t
w\,(t)=v\,\left(\frac{q}{t}\right)\,t
w\,(t)=v\,\left(\frac{q}{\cancel{t}}\right)\,\cancel{t}
w\,(t)=v\,q
w\,(t)=\int_{0}^{0.05} \left(120e^{-2t}\right)\,\left(\dfrac {-30e^{-4t}}{1000}\right)\,dt \)(division by 1000 for converting mC to C)
\(w\,(t)=-0.15 J \)
I feel something wrong with my solution. What is that?