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Published on Jun 7, 2015
NCERT Solutions FOR CLASS 10 science Chapter 12 electricity, Exercise Question 1 A piece of wire of resistance R is cut 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 –
Resistance of a piece of wire is proportional to its length. A piece of wire has a resistance R. The wire is cut into five equal parts. Therefore, resistance of each part =R/5 All the five parts are connected in parallel. ∴equivalent resistance (R') is given as
objective questions class 10 science A piece of wire of resistance R is cut into five equal part