State true or false.
The resistance of a wire does not depend on the area of cross section of the wire.

Length of conductor

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Area of cross-section

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Solution

The correct option is B
Area of cross-section

We know that,
R = ρ $\frac{L}{A}$
Hence resistance of a wire is inversely proportional to the area of cross section of wire.

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Similar questions

How does the resistance of conductor depend on:
(a) length of the contuctor?
(b) area of cross -section of hte conductor?
(c) temperature of the conductor

Q. How does the resistance of a wire vary with its cross sectional area.

Four wires of same materials have the following dimensions:
Wire $1$ : Length $l$ , Cross section area $A$
Wire $2$ : Length $l$ , Cross section area $2 A$
Wire $3$ : Length $0.5 l$ , Cross section area $1.5 A$
Wire $4$ : Length $2 l$ , Cross section area $0.5 A$

Which wire has the highest resistance?

Q. A wire of a given material having length

l

and area of cross-section

A

has a resistance

8 Ω

. Determine the resistance of another wire of same material having length

2 l

and area of cross-section

\frac{A}{2}

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State true or false. The resistance of a wire does not depend on the area of cross section of the wire.

The correct option is B Area of cross-section We know that, R = ρLA Hence resistance of a wire is inversely proportional to the area of cross section of wire.

State true or false.
The resistance of a wire does not depend on the area of cross section of the wire.

The correct option is B
Area of cross-section

We know that,
R = ρ $\frac{L}{A}$
Hence resistance of a wire is inversely proportional to the area of cross section of wire.