there is a uniform wire of resistance R. A person cuts into three equal pieces and joins them in parallel find whether the resistance of the combination is more or less than the resistance of the original wire
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It will be less as the equation will be R/r/3
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It is less than the orginal resistance
When the wire is cut...
The resistance of each is R/3
So 1/ R_equivalent =1/R1 + 1 / R2 + 1/ R3...
1 /R eq = 3×(1/(R\3)) (as resistance off each piece is same)
1/ R eq = 9 / R
R eq = R/9
When the wire is cut...
The resistance of each is R/3
So 1/ R_equivalent =1/R1 + 1 / R2 + 1/ R3...
1 /R eq = 3×(1/(R\3)) (as resistance off each piece is same)
1/ R eq = 9 / R
R eq = R/9
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