General basic electronics questions I have 3 questions QUESTION 1 -------------- http://img35.imageshack.us/img35/4011/zener.jpg [Broken] No matter what value of R I have, as long as the source voltage (16V in our case) bigger than the zener's diode voltage specification (6V in our case), the zener diode will conduct in this case (despite being backwards biased). Is that a correct assumption to make? QUESTION 2 -------------- I'm asked if this connection is CE (Common Emitter) http://img543.imageshack.us/img543/4290/50887855.jpg [Broken] I would say of course not, because here the arrow, which represents a diode, is pointing from the collector to the base. In common emitter, the emitter is common to both the base and the collector. Such as: http://img23.imageshack.us/img23/816/ce2f.jpg [Broken] QUESTION 3 -------------- Given a sinosoidal signal V(t) = 2.2 sin 314t. This signal rides on a direct current whose value is 12V. You may say that the average voltage of the signal is 12√2 V ANSWER ---------- This one is a bit confusing to me. I wanna say "NO, for a full rectified wave, the average value would be 2U(max)/pi"