Current electricity

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Question 16
Medium

The table below shows the resistivity, length, and diameter of two cylindrical wires, X and Y.

WireResistivityLengthDiameter
Wire Xρ\rhoρLLLddd
Wire Y2ρ2\rho2ρLLL2d2d2d

The resistance of wire X is RRR.

What is the total resistance when these two wires are connected in parallel?

13R\frac{1}{3}R31​R

12R\frac{1}{2}R21​R

23R\frac{2}{3}R32​R

32R\frac{3}{2}R23​R

Current electricity Questions

  1. A Level
  2. /Physics
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