What is resistance? How does the resistance of a long wire compare with the resistance of a short wire? How does the resistance of a thick wire that has a large cross-sectional area compare with the resistance of a thin wire?

Question

Vocaloid · Answer

well, let's start off with the first question, what's a basic definition of resistance?

zarkam21 · Answer

To repel

Vocaloid · Answer

well, good, but in terms of physics, what physical properties are associated with something that is a resistor?

zarkam21 · Answer

electrical circuit that resists the flow of electrical current.

Vocaloid · Answer

well, good, but more generally, a material that resists the flow of electrons (not necessarily a circuit)

Vocaloid · Answer

|dw:1523650691331:dw|

Vocaloid · Answer

now, judging by this equation, how would the resistance compare for a long wire vs a short wire?

zarkam21 · Answer

for long it would be bigger

Vocaloid · Answer

awesome

what about thick wire vs thin wire?

zarkam21 · Answer

for thick um not sure, thin would be smaller

Vocaloid · Answer

notice how the cross-sectional area is given in the denominator

when the cross-sectional area is large is the resistance large or small?

zarkam21 · Answer

small

Vocaloid · Answer

good, so we would say the resistance is smaller for a thick wire and larger for a thin wire

zarkam21 · Answer

A resistor is a material that resists the flow of electrons (not necessarily a circuit). The resistance is smaller for a thick wire, larger for a thin wire, and for  long it would be bigger

zarkam21 · Answer

so this

Vocaloid · Answer

you don't need to include that bit in parentheses, that was more for your knowledge

Vocaloid · Answer

everything else is ok