12 Questions
In which section of the copper wire is the electric field the greatest?
Section with the smallest radius
Where is the electric field the weakest along the copper wire?
Section with the largest radius
In which section of the copper wire is the current density the greatest?
Section with the largest radius
Where is the current density the weakest along the copper wire?
Section with the smallest radius
Which section of the copper wire has the greatest electric field?
Section 3
Rank the sections of the copper wire according to the magnitude of the electric field, greatest first.
Section 3, Section 2, Section 1
In which section of the copper wire is the current density the greatest?
Section 1
Rank the sections of the copper wire according to the magnitude of the current density, greatest first.
Section 1, Section 2, Section 3
In an electric circuit, what is the purpose of a fuse?
To limit the current in the circuit
At what current density does the material used in a fuse melt?
440 A/cm2
What happens to the fuse when the current exceeds the predetermined value?
The circuit opens
What diameter of cylindrical wire should be used to make a fuse that will limit the current to 0.50 A?
$0.00114 cm$
Rank the three sections of a copper wire according to the magnitude of electric field and current density based on the given electric potential versus position graph.
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