Need help some physics problems?
How would I solve problems when given this:
Let RS = R. If R1 = 50 Ω and R2 = 25 Ω and I = 0.15 A, find V.
Let RP = R. If R1 = 50 Ω and R2 = 25 Ω and I = 0.15 A, find V.
Given R = 110 Ω, l = 1.0 m, and A = 22×10-6 m2 , find ρ.
- NCSLv 76 months agoFavorite Answer
I would guess that "RS" is telling is that the resistors are in series, and the "RP" means that they are in parallel.
If that's correct, then
a/ Rs = 75 Ω, and so
voltage V = I*R = 0.15A * 75Ω = 11 V
b/ Rp = 1 / (1/50 + 1/25) Ω = 17 Ω
V = 0.15A * 17Ω = 2.5 V
c/ R = ρL/A
ρ = RA/L = 110Ω * 22e-6m² / 1.0m = 0.00242 Ω·m
Hope this helps!
- alexLv 76 months ago
Need a diagram or figure !
- billrussell42Lv 76 months ago
you need a drawing to show where all these resistors are located with respect to each other.