A tungsten wire (ρ=5.6×10−8Ω⋅m) with a diameter of 0.20mm is to be used as a resistor in a circuit powered by a 6.0V ideal battery. If the desired steady current is 2.0A, approximately what length of wire is required?
(a) 0.54m
(b) 1.7m
(c) 0.17m
(d) 6.7m