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Mkey [24]
3 years ago
6

What happens to the resistance of a wire as its length increases? A. The resistance decreases. B. The resistance is not affected

by a change in wire length. C. The resistance alternates between high and low values. D. The resistance increases.
Physics
1 answer:
kondor19780726 [428]3 years ago
3 0

Answer:

D. The resistance increases.

Explanation:

Resistance of a wire is R = ρL/A, where ρ is the resistivity of the wire, L is the length, and A is the cross sectional area.

As L increases, R increases.

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wavelength = 3000/12 = 250m

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To convert m to km, we divide by 1000

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wavelength = 0.25km

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