In the equation rho = 1/sigma the symbol rho stands for charge density conductiv

Question

In the equation rho = 1/sigma the symbol rho stands for charge density conductivity resistance resistivity Current density is given which one of the following variables? I J sigma C Which one of the following correctly lists two ways to increase the resistance from a single piece of wire? increase the length of the wire or increase the area across the wire increase the length of the wire or decrease the area across the wire decrease the length of the wire or increase the area across the wire decrease the length of the wire or decrease ihc area across the wire

Explanation / Answer

1 D resistivity

2 B J

3B increase length or decrease cross section area

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