2. A series RL filter circuit with an output across the inductor will result in what type of filtering?
3. What is the total inductance in the given circuit?
4. On a schematic, dashed lines between two vertical coils usually mean the transformer has:
5. Faraday's law states that the:
6. A henry value divided by a circuit resistive value provides the:
7. What does Faraday's law concern?
8. The polarity of induced voltage while a field is collapsing is:
9. What is the permeability of transformer iron?
10. Electromagnetism is the:
11. A magnetic field has:
12. Which two values are plotted on a B-H curve graph?
13. What is the number of turns required in the secondary winding for a transformer when 120 volts is applied to a 2400-turn primary to produce 7.5 Vac at the secondary?
14. The four factors determining inductance are the number of turns, coil length, coil area, and:
15. What is the inductive reactance if the Q of a coil is 60, and the winding resistance is 5 ?
16. The time difference, or lag, between flux density and magnetizing force is known as:
17. A magnetic circuit breaker will open to protect equipment only when:
18. Electromagnetic induction is the generation of:
19. Inductance is:
20. Current will cause a magnetic field in a conductor as follows:
21. What is the total inductance, assuming no mutual inductance?
22. During a current change, the ability of a conductor to produce counter emf within itself is called:
23. If the switch is moved to position 1 in the given circuit, how long will it take for the current to reach its maximum value?
24. When a transformer secondary lead has been connected to a middle loop that is not an end connector, it is called a:
25. A 24 V peak source is connected across a 900 H inductor. If the frequency of the source is 22 kHz, what is the reactive power?