Hi Vince, To answer your first question, assuming that you are looking for the power dissipation of an IC package for instance, there can also be power dissipated internally from the inputs although typically minimal but outputs can dissipate power as well from sources different from the VCC and current going into your circuit. Your second question is somewhat broad. I think both are used depending on the receiver and the circuit or where in the circuit. For instance I can envision a series LC where I want to pass a band of frequencies and a parallel LC where I would want to reject a band of frequencies. More often what's used are combinations of LC's to make a modern LP, HP BP, filter. Perhaps you can specify where in the receiver you are interested: preamp, IF, LO, mixers, etc. Ed At 02:42 AM 11/4/03 -0800, vince vintero wrote: >HI...my name's Vince and i'm an ET student. We were given a homework and I >was researching through "Ask Jeeves" and i saw a link where you answered >someone's question for their project. >My question is this: Why is it that using measurement of a circuit's >voltage with a voltmeter and its current with an ammeter does not provide >the necessary info to find the actual power dissipated by the circuit? And >is the tuned circuit of a receiver typically series or parallel LC circuit? >Hope you can provide me the info i need....i'd really appreciate >it...thanks so much > >--------------------------------- >Do you Yahoo!? >Protect your identity with Yahoo! Mail AddressGuard > >------------------------------------------------------------------ >To unsubscribe from si-list: >si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field > >or to administer your membership from a web page, go to: >//www.freelists.org/webpage/si-list > >For help: >si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > >List archives are viewable at: > //www.freelists.org/archives/si-list >or at our remote archives: > http://groups.yahoo.com/group/si-list/messages >Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu