6. The unit for reluctance is ________.
(a) tesla
(b) At/Wb
(c) At/m
(d) Wb
7. The unit for permeability is ________.
(a) Wb/At × m
(b) At/m
(c) At/Wb
(d) Wb
8. If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage ________.
(a) remains unchanged
(b) reverses polarity
(c) increases
(d) decreases
9. The voltage induced across a certain coil is 200 mV. A 120 Ω resistor is connected to the coil terminals. The induced current is ________.
(a) 1.7 mA
(b) 16 mA
(c) 12 mA
(d) 120 mA
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
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- 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