Answered: A certain fuse "blows" if the current…

A certain fuse "blows" if the current in it exceeds 1.0 A. This fuse melts with a current density of 690 A/cm2. What is the diameter of the wire in the fuse?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 15P: If the current carried by a conductor is doubled, what happens to (a) the charge carrier density,...

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Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

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Question

A certain fuse "blows" if the current in it exceeds 1.0 A. This fuse melts
with a current density of 690 A/cm2. What is the diameter of the wire in
the fuse?
0.86 mm
O 0.43 mm
0.59 mm
Onone of the given choices
O 0.64 mm

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