2. a potential difference of 12 v is found to produces a current of 0.40 a in 3.2 m length of wire of radius 0.40 cm. what is the total resistance and resistance and resistivity of the wire?



Answer :

The wire has a combined resistance & resistivity of 4.7×10¬⁴ Ω⋅m.

What is the radius?

a line segment linking a circle, sphere, or object's center to its perimeter or bounding surface. 2a: a corresponding bone in vertebrates above fishes, as well as the bone just on human forearm's thumb side.

What are diameter and radius?

The diameter of the a circle cuts through center whereas the radius extends from the center to the edges of the circle. The diameter of a round effectively divides the shape in two.

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