Question

Which of the following will offer lowest resistance?
Options
O A 45 cm long copper wire with diameter 3 mm.
O A60 cm long copper wire with diameter 2 mm.
A 33 cm long copper wire with diameter 1.5 mm.
A 33 cm long copper wire with diameter 5 mm.
​

Answer 1

Answer:

Bending of an iron rod is a __________ Change.

Answer 2

Step-by-step explanation:

A

long copper wire is strechted to increases its length by

. Find the laterial strain in the wire, if the possion's ratio for copper is