- #1
Fatima Hasan
- 319
- 14
Homework Statement
Homework Equations
##ρ=\frac{RA}{L}##
##I=\frac{ΔQ}{Δt}##
##I=\frac{ΔV}{R}##
The Attempt at a Solution
(a)
##ρ=\frac{RA}{L}##
##L=\frac{2*π*r}{2} = πr##
ρ = (5*2.5*10-7)/(π*0.1)
ρ = 4*10-6 Ωm.
(b)
Req = 7+5 = 12Ω
##I=\frac{ΔV}{R}##
I = 36/12 = 3 A
##I=\frac{ΔQ}{Δt}##
3 = ΔQ / 100
ΔQ = 3*100 = 300 C
Is my answer correct ?