The resistance RRR of a copper "gauge 10" jumper cable with diameter d=0.259d=0.259 cmcm is 0.0124 ΩΩ. Find the length LLL of the cable. Express your answer in mm. Use three significant figures.
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Ответ:
The length will be "3.89 m".
Explanation:
The given values are:
Diameter,
d = 0.259 cm
On converting it in m, we get
d = 0.259 × 10⁻²
Resistance
R = 0.0124 Ω
As we know,
⇒
On putting the estimated values, we get
If,
then,
On substituting the values, we get
Ответ: