Need help parallel and sereis circuits physics?
2) Three wires connected in parallel to a battery stretch across 100 m. Each wire has a
diameter of 50 cm and a potential of 110 v across them. The current coming out of the
battery is 11.58 x 106 amps (don't touch them!). Use the resistivity table in your book to
determine what type of material makes up the wire?6 pfs
- A Yahoo UserLv 78 months agoFavorite Answer
Assuming all three wires are made out of the same material
you can determine the total (equivalent) resistance of the parallel wires using V=IReq
and from there you can determine the total resistance of each wire using the parallel resistance equation.
1/Req = 1/R1 + 1/R2 + 1/R3
but since R1=R2=R3=Rwire
1/Req = 3/Rwire
Once you have the resistance of one wire
since you also have the length and diameter
you should be able to determine resistivity of a single wire
and match that to some material in the table in your book.