A uniform wire of resistance 50 ohm is cut

Asked by admin @ 20/08/2021 in Physics viewed by 339 People

A uniform wire of resistance 50 ohms is cut into 5 equal parts. These parts are now connected in parallel.Then the equivalent resistance of the combination is

a) 2 ohmb) 12 ohmc) 250 ohmd) 6250 ohm

Answered by admin @ 20/08/2021

Answer:

As resistance is directly proportional to the length of wire, when you cut the wire in 5 equal parts, the resistance gets reduced by 5 times i.e 10 ohms. As 5 resistors each with 10 ohms are connected in parallel,the equivalent resistance will be 10/5 = 2 ohms…

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