The resistance of a piece of rubber is higher | vedclass

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(A) The resistance of a material depends on its resistivity $(\rho)$.Rubber is an insulator, meaning it has a very high resistivity, which prevents th

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(A) The resistance of a material depends on its resistivity $(\rho)$.Rubber is an insulator, meaning it has a very high resistivity, which prevents the flow of electric current.Copper is a conductor, meaning it has a very low resistivity, which allows electric current to flow easily.Since resistance $R = \rho \frac{l}{A}$, for pieces of the same dimensions (length $l$ and area $A$), the material with higher resistivity will have higher resistance.Therefore, the resistance of rubber is significantly higher than that of copper.

Sample	$A$	$B$	$C$
Resistivity	$1.6 \times 10^{-8} \Omega \cdot m$	$5.2 \times 10^{-8} \Omega \cdot m$	$100 \times 10^{-6} \Omega \cdot m$

The resistance of a piece of rubber is higher than that of a piece of copper of the same dimensions.

Similar Questions

The following table provides the resistivity of three samples:
Sample $A$ $B$ $C$
Resistivity $1.6 \times 10^{-8} \Omega \cdot m$ $5.2 \times 10^{-8} \Omega \cdot m$ $100 \times 10^{-6} \Omega \cdot m$

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