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Relationship Between Power and Radius for Current in a Wire

APPHEM-1MBBVW

A typical wire with a circular cross-sectional area has a current flowing through it.

If the current density and voltage are kept constant, but the gauge of the wire is changed (changing the radius) which graph(s) correctly shows the relationship between power and radius?

A

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B

Created for Albert.io. Copyright 2016. All rights reserved.

C

Created for Albert.io. Copyright 2016. All rights reserved.

D

Created for Albert.io. Copyright 2016. All rights reserved.

E

Created for Albert.io. Copyright 2016. All rights reserved.