Answer to Question #325582 in Physics for grey tyrant

Question

what happens to the (1) resistance and (2) current flow through a conductor if:

b. conductivity increases

c. decrease in temperature

Answer 1

$$R=\rho\frac{l}{A},\quad R=R_0(1+\alpha \Delta T),\quad I=\frac{V}{R}$$

(a) resistance decreases, current increases.

(b) resistance decreases, current increases.