A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to 440 A/cm². What radius of cylindrical wire should be used to make a fuse that will limit the current to 6.0 A ?

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A fuse in an electric circuit is a wire that
is designed to melt, and thereby open
the circuit, if the current exceeds a
predetermined value. Suppose that the
material to be used in a fuse melts when
the current density rises to 440 A/cm².
What radius of cylindrical wire should
be used to make a fuse that will limit the
current to 6.0 A ?
Transcribed Image Text:A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predetermined value. Suppose that the material to be used in a fuse melts when the current density rises to 440 A/cm². What radius of cylindrical wire should be used to make a fuse that will limit the current to 6.0 A ?
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