Answer to Question #61360 in Electricity and Magnetism for bebeji

Question

5) A 0.96H coil carries a current of 8.0A. Calculate the energy stored in it
a) 30.7J
b) 45.3J
c) 62.6J
d) 27.3J
6) A 1000-turn solenoid of length 20cm has a cross-sectional area of 2.0 square centimetre. Find the inductance of the coil if the core is air.
a) 1:26 10À3 H
b) 2:30 10À3 H
c) 4:66 10À3 H
d) $1.54\times10^{-3}H