Question

19. (iv) A copper wire has diameter 0.5 mm and resistivity p = 1.6 x 100-8ohm m. What will be
the length of its wire to make its resistance 100ohm?
(a) 120 m
(b) 123 m
(c) 150 m
(d) 160 m​

Answer 1

Answer:

c is the answer ooo9okkkkkkkkkkkkkkk