Posted by lllllllll on Monday, July 16, 2012 at 11:35am.
Resistivity ( ρ )doesn’t depend on the length and area; it depends on the properties of the substance and temperature. Resistance depends on ρ, L, and A as
R1= ρ •L/A
R2=ρ•2L/(A/2)=4 •ρ•L/A=4•R1
Related Questions
Physica - If the length of a wire is doubled and its cross – section area ...
Physica - If the length of a wire is doubled and its cross – section area ...
PHYSICS - Two wires have the same cross-sectional area and are joined end to end...
physics - Two wires have the same cross-sectional area and are joined end to end...
physics PLEASE HELP - Two wires have the same cross-sectional area and are ...
physics - German silver wire has a cross-sectional area of 2.047 x 10^-3 cm^2. ...
PHYSICS 2 - Two wires have the same cross-sectional area and are joined end to ...
physics - Two wires have the same cross-sectional area and are joined end to end...
College Physics - A wire P has resistance R. If the wire is stretched and its ...
Physics - If a wire of resistance R, resistivity ñ "roe", ...
For Further Reading
