Give the relation of resistance of wire with the length and thickness.

The answer to this question is given below in the explanation section.

Explanation:

Give the relation of resistance of wire with the length and thickness:

Resistance:

There is a resistance to the flow of an electric current through most conductors.

The length of wire increases

The thickness of wire decreases

The resistance of a long wire is greater then the resistance of a short wire because electrons collide with more ions as they pass through.

The relationship between resistance and wire length is proportional. The resistance of thin wire is greater then the resistance of a thick wire because a thin wire has fewer electrons to  carry the current.The relationship between resistance and the area of the cross section of wire is inversely proportional.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

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