Hello, Im having trouble calculating the totle resistance of the following: 5 15Ω resistors 10 100Ω and two 10Ω resistors are all connected in parallel. what is the totle resistance? Please explain?

Thanks,

 

1/Rtotal=1/R1+1/R2+1/R3+ ........

Thus,

Rtotal=1/[1/R1+1/R2+1/R3+ ........]

R1,R2,R3 and so on are all the parallel resistors

 

If you want to see a few examples of the application of the formulas that mik3 has posted, take a look here.

hgmjr

 

you can treat 5 15ohm resistances as a single equivalent resistance of 15/5 and so on , if that helps..