NDA 2022 Physics question

An electric wire of resistance 50 ohm is cut into five equal wires. These wires are then connected in parallel. What is the equivalent resistance of this combination?

(A)2 ohmCorrect
(B)10 ohm
(C)0·5 ohm
(D)5 ohm

Answer: (A)

Solution

Resistance is proportional to length, so each of the five equal pieces has resistance ohm. Five equal

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Question ID VK-032046