The resistivity of Nichrome is 10-6 Ω-m. The wire of this material has radius of 0.1 mm with resistance 100 Ω, then the length will be
A. 3.142 m
B. 0.3142 m
C. 3.142 cm
D. 31.42 m
Answer:A
The resistivity of Nichrome is 10-6 Ω-m. The wire of this material has radius of 0.1 mm with resistance 100 Ω, then the length will be
A. 3.142 m B. 0.3142 m C. 3.142 cm D. 31.42 m