Calculate the resistance of a nichrome wire with a length of 150 m and a cross-sectional area of 0.2 mm2
| February 6, 2021 | education
These tasks: l (length of the taken nichrome wire) = 150 m; S (cross-sectional area) = 0.2 mm2.
Reference values: ρ (specific electrical resistance of nichrome at 20 ºС) = 1.1 Ohm * mm2 / m.
The resistance of the nichrome wire taken can be determined by the formula: R = ρ * l / S.
Let’s calculate: R = 1.1 * 150 / 0.2 = 825 Ohm.
Answer: The nichrome wire taken has a resistance of 825 ohms.
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