5555555555 18. What is the flux density when the flux is 5.5 μWb and the cross-sectional area is 6 × 10–3 m2? (a) 91.7 μT (b) 917 μT (c) 91 T (d) 9.7 T
5555555555 1. The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is ________. (a) 1,000 V (b) 2,000 V (c) 31.25 V (d) 3,125 V
5555555555 10. There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 μWb? (a) 14,400 At/Wb (b) 1,440 At/Wb (c) 9,000 At/Wb (d) 90,000 At/Wb