a coil consists of 2000 turns of copper wire hav ing a cross sectional area of 0 8 mm 2 the mean length per turn is 80cm and the resistivity of copper is 0 02 m find the resistance of the coil and power absorbed by the coil when connected acros
A coil consists of 2000 turns of copper wire hav-ing a cross-sectional area of 0.8 mm
2
. The mean length per turn is 80cm and the resistivity of copper is 0.02
μ
Ω
–m. Find the resistance of the coil and power absorbed by the coil when connected across 110 V d.c. supply