Hello! From what I have learned now is the topic of sinusoidal steady-state power.In this topic,the reactive power for purely inductive and purely capacitive confuse me for a long time. Try check out the problem I faced from this bookhttp://books.google.com.my/books?id...&oi=book_result&resnum=1&ct=result#PPA395,M1".Reactive power for a purely inductive circuit is:p=-Qsin2wt or reactive power for a purely capacitive circuit is p=-Qsinwt? Can anybody help me solve it? thanks!