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Basic Fundamentals of Electricity
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Basic Fundamentals of Electricity
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25 Questions

1. What determines whether a transformer is step-up or step down?

2. Define Frequency.

3. What is the operational difference between a diode and a zener diode

4. Define phase shift

5. Define effective value (RMS)

6. Define Direct Current (D.C.)

7. What is the disadvantage of A.C over D.C?

8. What is Ohm's Law in A.C is the same as in D.C, with the exception of 'opposition'

9. What is true power and how do you calculate it?

10. What two things determine the polarity of the potential produced by electromagnetic induction?

11. What is the purpose of transistors

12. What is the relationship of period and frequency?

13. How does a transistor operate?

14. Define inverter

15. Define Saw tooth wave-A.C.

16. Define inductive circuit

17. What is the purpose of zener diodes

18. Define peak value

19. Define Power factor

20. What are the advantages of three phase? 2 things

21. What are the three ways to make a circuit resonant?

22. What causes phase shift? And how is phase shift measured?

23. What is the significance of resonance?

24. Define purely inductive circuit

25. Define a time constant in relation to capacitance

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