Question

The resistance of a conductor is 27ohm. If it is cut in to three equal parts connected in parallel, then its total resistance is

Answer 1

a wire is cut into three parts

1. = 1. + 1. + 1

Rp. R/3. R/3. R/3

1. = 3 + 3. + 3

Rp. R. R. R

1. = 3 +3+3

Rp. R

1. = 9

Rp. R

Rp= R

9