# science

posted by .

suppose you have to wires of equal length made from the same materials. how is it possible for the wires to have different resistance

• science -

Are they both at the same temperature?

• science -

Wire

## Similar Questions

1. ### Physics

Two wires with the same resistance have the same diameter but different lengths. If wire 1 has length L1 and wire 2 has length L2, how do L1 and L2 compare if wire 1 is made from copper and wire 2 is made from aluminum?
2. ### Physics

Two parallel wires conduct equal currents in the same direction. (a) At a point in the plane of the wires midway between them, do the individual fields of the wires cancel or reinforce each other?

Two parallel wires conduct equal currents in the same direction. (a) At a point in the plane of the wires midway between them, do the individual fields of the wires cancel or reinforce each other?
4. ### Physics

Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are 3.97 Ù and 1.97 Ù. Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional …
5. ### Physics

Two metallic wires of the same material have the same length but cross-sectinal area is in the ratio of 1:2.they are connected in 1)-series 2)-parallel. Compare the drift velocities of the electrons in the two wires in both the cases. …
6. ### physics

Two identical wires with resistance,R and mass,m rest on two smooth parallel superconducting (zero resistance) rails. Initially, they are separated by a distance,D=70 cm. Suddenly, a uniform magnetic field B, perpendicular to the plane …
7. ### physics

Consider two copper wires with the same cross-sectional area. Wire A is twice as long as wire B. How do the resistivities and resistances of the two wires compare?
8. ### Physics

Suppose two conducting wires each of mass 25g and length 40m are both hanging from a support beam. When the circuit is turned on, the wires repel each other so that the angle between the supporting strings is 30 degrees at a height …
9. ### physics

Two metallic wires X and Y are connected to a series. wire X has length l and radius r . While Y has length 2 l and radius 2 r. find the ratio of total resistance of series combination and resistance wire X , if both the wires are …
10. ### Science

Students were given materials to complete a circuit to turn on one light. The materials received were 2 wires,AA battery, and various sizes lightbulbs.What is the variable in the experiment?

More Similar Questions