A portion of Nichrome wire of radius 2.85 mm is to be used in winding a heating

Question

A portion of Nichrome wire of radius 2.85 mm is to be used in winding a heating coil. If the coil must draw a current of 8.05 A when a voltage of 120 V is applied across its ends, find the following. (Take the resistivity of nichrome to be

A portion of Nichrome wire of radius 2.85 mm is to be used in winding a heating coil. If the coil must draw a current of 8.05 A when a voltage of 120 V is applied across its ends, find the following. (Take the resistivity of nichrome to be 1.50 X 10^-6 ? · m.) (a) the required resistance of the coil ? (b) the length of wire you must use to wind the coil m

Explanation / Answer

started to solve this until I saw "120 V"

I can guess at the meaning, but I can't answer a question based on guesses.

format for exponents is 10² or 10^2

edit: use ohm's law to find the resistance, R = 120/8.5

Then use the following to calculate the length.
Resistance of a wire in
R =

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