3 of 20 Review | Constants Learning Goal: To learn to apply the concept of current density and microscopic Ohm's law. Part D A "gauge 8" jumper cable has a diameter d of 0.326 cm. The cable carries a current I of 30.0 A. The electric field E in the cable is 0.062 V/m. The resistance R of a copper "gauge 10" jumper cable with diameter d= 0.259 cm is 0.0124 2. Find the length L of the cable. Express your answer in m. Use three significant figures. Below is a list of some common metals with their resistivities. • View Available Hint(s) Resistivity P(2. m) Material сopper 1.72 x 10-8 L = m silver 1.47 x 10-8 aluminum 2.75 x 10-8 Submit

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+ Jumper Cables and Ohm's Law
3 of 20
I Review | Constants
Learning Goal:
To learn to apply the concept of current density
and microscopic Ohm's law.
Part D
A "gauge 8" jumper cable has a diameter d of
0.326 cm. The cable carries a current I of 30.0
A. The electric field E in the cable is 0.062
V/m.
The resistance R of a copper "gauge 10" jumper cable with diameter d = 0.259 cm is 0.0124 2. Find the length
L of the cable.
Express your answer in m. Use three significant figures.
Below is a list of some common metals with
their resistivities.
• View Available Hint(s)
Resistivity
e (N. m)
Material
ανα ΑΣφ
?
copper
1.72 x 10-8
L =
m
silver
1.47 x 10-8
aluminum 2.75 x 10-8
Submit
gold
2.44 x 10-8
Provide Feedback
Next>
steel
20 × 10-8
Transcribed Image Text:+ Jumper Cables and Ohm's Law 3 of 20 I Review | Constants Learning Goal: To learn to apply the concept of current density and microscopic Ohm's law. Part D A "gauge 8" jumper cable has a diameter d of 0.326 cm. The cable carries a current I of 30.0 A. The electric field E in the cable is 0.062 V/m. The resistance R of a copper "gauge 10" jumper cable with diameter d = 0.259 cm is 0.0124 2. Find the length L of the cable. Express your answer in m. Use three significant figures. Below is a list of some common metals with their resistivities. • View Available Hint(s) Resistivity e (N. m) Material ανα ΑΣφ ? copper 1.72 x 10-8 L = m silver 1.47 x 10-8 aluminum 2.75 x 10-8 Submit gold 2.44 x 10-8 Provide Feedback Next> steel 20 × 10-8
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