Question

. A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10–8 Ω m. What will be

the length of this wire to make its resistance 10 Ω? How much does the resistance

change if the diameter is doubled​

Answer 1

Answer:

attached above

Explanation:

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Answer 2

Answer:

A copper wire has diameter 0.5mm and resistivity of 1.6×10-

the length will be