1. A 110- resistance coil draws a current of 5.00 A. What power is used? 2. What...

1. A 110-Ω resistance coil draws a current of 5.00 A. What power is used?
2. What power is used by a heater with resistance 19.5 Ω and that draws a current of 5.55 A?
3. Vp = 30.0V
Vs = 45.0V
Ns = 15.0 turns
Find Np
4. Vp = 250V
Np = 730 turns
Ns = 275 turns
Find Vs
5. Ip = 6.00A
Is = 4.00A
Vp = 39.0V
Find Vs
6. A step-up transformer on a 115-V line provides a voltage of 2300 V. If the primary coil has 65.0 turns, how many turns does the secondary have?
7. A step-down transformer on a 115-V line provides a voltage of 11.5 V. If the secondary coil has 30.0 turns, how many turns does the primary have?
8. A transformer has 20.0 turns in the primary coil and 2200 turns in the secondary. If the primary voltage is 12.0 V, what is the secondary voltage?