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The electrical resistance on a long piece of wire is r the

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Reference no: EM13635976

The electrical resistance on a long piece of wire is R. The wire is streatched to be twice as long, and because the volume doesnt change its cross-sectional area is halved. The electrical resistance of the stretched wire is:

a. R/2

b. R

c. 2R

d. 4R

Reference no: EM13635976

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