What is the cross-sectional area of a 25 m long nickel conductor with a resistance of 5 ohms?
| May 16, 2021 | education
To find the value of the cross-sectional area of the specified nickel conductor, we apply the formula: R = ρн * l / S and S = ρн * l / R.
Constants and variables: ρн – specific electrical resistance of nickel (we take ρн = 0.4 Ohm * mm2 / m); l – conductor length (l = 25 m); R – resistance (R = 5 ohms).
Calculation: S = ρн * l / R = 0.4 * 25/5 = 2 mm2.
Answer: The cross-sectional area of the specified nickelin conductor is 2 mm2.
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