Two wires made of different materials have the same uniform current density. Both wires will have the same current only if: Select one: O the potential differences across them are the same O both their lengths and cross-sectional areas must be the same O Can never be the same because of the difference in the resistivity O their cross-sectional areas are the same O More information needed O their lengths are the same O the electric fields in them are the same
Two wires made of different materials have the same uniform current density. Both wires will have the same current only if: Select one: O the potential differences across them are the same O both their lengths and cross-sectional areas must be the same O Can never be the same because of the difference in the resistivity O their cross-sectional areas are the same O More information needed O their lengths are the same O the electric fields in them are the same
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
Section: Chapter Questions
Problem 14RQ
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![Two wires made of different materials have the same uniform current density. Both wires will have the same
current only if:
Select one:
O the potential differences across them are the same
O both their lengths and cross-sectional areas must be the same
O Can never be the same because of the difference in the resistivity
O their cross-sectional areas are the same
O More information needed
their lengths are the same
the electric fields in them are the same](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F00b15d44-e808-4613-9cec-3c23d1f46b7c%2F766b2b1a-b1f0-493f-98d2-c1f9aebc4cb6%2Faxy188f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Two wires made of different materials have the same uniform current density. Both wires will have the same
current only if:
Select one:
O the potential differences across them are the same
O both their lengths and cross-sectional areas must be the same
O Can never be the same because of the difference in the resistivity
O their cross-sectional areas are the same
O More information needed
their lengths are the same
the electric fields in them are the same
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