Question

How does the resistance of a conductor depend on:

(a) length of the conductor?

(b) area of cross section of the conductor?

(c) temperature of the conductor?​

Answer 1

Answer:

R= l/a(we know that)

a) length of conductor directly proportional to resistance.

so when, length of conductor increases, resistance also increases.

b) area of cross section is inversely proportional to resistance.

so, resistance decreases when cross section area increases.

c) temperature increases caused increase in resistance.