Question

a piece of wire of resistance r is cut in 10 equal parts these are connected is parallel if equivalent resistance of the combination is R then the ratio of r to R

Answer 1

Answer:

r:R=10:1

Explanation:

Resistance of combination,

1/R=1/r+1/r+1/r+.....(adding ten times)

=10/r

Therefore,

R=r/10 ohm

Therefore,

r:R=r/R

=r/(r/10)

=10/1

=10:1