Question

Exercitiul 3, va rog! De preferabil, cu explicatii.

Answer 1

ρ1=R1•S1/l1

ρ2=R2•S2/l2

S1=S2=S

R1=R2=R

ρ1=R•S/l1

ρ2=R•S/l2

________":"

ρ1/ρ2=1/l1/1/l2=>ρ1/ρ2=l2/l1=>ρ1l1=ρ2l2

Deci a si c sunt corecte