Write the expression for the resistance of a conducting
wire in terms of length and area of cross section.???
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Explanation:
The resistance of a metallic wire in terms of resistivity is given as:
R=ρl/A
Here, ρ is the resistivity of wire, l is the length, A is the area of cross-section and R is the resistance of wire.
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Answer:
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Explanation:
Let R be the resistance of a conducting wire of length l and area of cross-section A. We then have:
R = ρl/A
Here ρ is a constant characteristic of the material of the wire and is called its resistivity. Thus,
Resistance = (Resistivity of the material of the wire) x (length of the wire)/(Area of cross-section of the wire)
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