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A Copper Cable Needs to Carry a Current of 200

Question 14

Multiple Choice

A copper cable needs to carry a current of 200 A with a power loss of only 3.0 W/m.What is the required radius of the copper cable? (The resistivity of copper is 1.7 x 10-8 W*m) .


A) 0.21 cm
B) 0.85 cm
C) 3.2 cm
D) 4.0 cm

Correct Answer:

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