The resistance of a wire of 0.01 cm radius is 10 Ω. If the resistivity of the material of the wire is 50 × 10-8 ohm meter, find the length of the wire.
Question
Solution 1
Sure, I can help with that. The resistance (R) of a wire can be found using the formula:
R = ρL/A
where:
- R is the resistance,
- ρ is the resistivity of the material,
- L is the length of the wire, and
- A is the cross-sectional area of the wire.
We can rearrange this formula to solve for L:
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