Question

(3) How does the resistance of a wire change when

(a) it’s length is tripled

(b) it’s diameter is tripled

(c) it’s material is changed to one whose resistivity is three times more?​

Answer 1

Answer:

1. 1/3 increase
2. the resistance will get reduced by 3times
3. ten resistivity will become thrice

Answer 2

a) 1/3 increase

b) the resistance will get reduces by three time

c) ten resistivity will become trice