Question

gradient resistance expression​

Answer 1

Answer:

In analogy with sliding friction, rolling resistance is often expressed as a coefficient times the normal force. This coefficient of rolling resistance is generally much ...

Explanation:

Answer 2

Answer:

here is your answer

Explanation:

Yes. Potential gradient,

K=potential difference applied (V)length of wire(l),,

i.e.,

K=Vl=(IR)l=Il(ρl/A)=IρA