CBSE Class 10 Answered
@ wires of resistence a & b of equal mass and same material are taken the diameter of wira a is half of diameter b if the resistence of wire a is24 ohms find the resistence of wire b
Asked by Porwal_kumudini | 16 Jul, 2015, 05:36: PM
Expert Answer
For wire A:
rA = Radius and lA = length of the wire
For wire B:
rB = Radius and lB = length of the wire
Given that the two wires are made of the saem material and equal masses. Hence, their density (d) and the specific resistance (ρ) is the same.
Answered by Yashvanti Jain | 15 Dec, 2017, 07:11: PM
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