Question

1 A
wire of
piece of
resistance R
is out into five equal parts. These
parts are then connected in
parallel. If the equivalent,
resistance of this combination
is R', then the ratio R/ R is
(a) 1/25 b) 1/5 c) 5 d) 25 ​

Answer 1

Answer:

there fore ur answer is 1/5

Answer 2

Answer:

Explanation:

Wire is cut into 5 equal parts . since all dimension are same for pieces.

Resistance of each wire is equal and has a value = R/5 .

We , know that resistance is proportional to length of wire and inversely proportional to area of cross section . So if length is 1/5th

Then resistance is also 1/5th of origanal value .

Therefore correct option is (b) 1/5.