Resistance of a very fine tungsten wire


The resistance of a very fine tungsten wire with a 10 micro m x 10micro m square cross section is 2978 ohm how long is the wire? A 2978 ohm resistor is made by wrapping this wire in a spiral around a 3.9 mm diameter glass core. How many turns of wire are needed?

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Physics: Resistance of a very fine tungsten wire
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