Question

The electrical resistance of a wire is directly proportional to its length. If a 3-foot long wire has a resistance of 1 ohm(s), find the resistance of a 9-foot long wire.
What is the resistance?
If it varies directly, the resistance of a 9-foot wire is 3 times the resistance of a 3-foot wire.

Related Questions

The electrical resistance of a wire waves directly as its length & inversely as the square of its di... In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, a... In physics, Ohm's law says that current through a wire, $I$, is directly proportional to voltage, $V... use a variation model to solve for the unknown value the resistance of a wire varies directly as its...