2.19 How much ore for a metre of Cu cable?
How much copper ore do you need for 100 m of cable? 100 m of typical 3-core copper cable for electrical wiring weighs about 2 kg. Using this information, complete the activity below.
Activity 2.4 Cu cable
Timing: Allow about 5 minutes
a.
198 kg
b.
20.2 kg
c.
267 kg
The correct answer is a.
Discussion
The answer is 198 kg. The calculation required for this is: