ELECTRICAL THEORY REVISION QUESTIONS AND ANSWERS.3
1. What rule can be used to determine the direction of the current assuming a closed path is
provided across the ends of a conductor loop?
- correct answer left hand
2. (true or false) an individual cycle of any sine wave represents a definite amount of time. -
correct answer true
3. What is the correct definition of the time it takes for a sine wave to complete one cycle? -
correct answer period of waveform
4. Which symbol represents wavelength?
- correct answer λ
5. What term is referred to as the number of complete cycles of alternating current or
voltage completed each second?
- correct answer frequency
6. How many maximum or peaks values occur during each complete cycle of alternating
current?
- correct answer two
7. All meters are calibrated to indicate what values of current and voltage unless marked to
the contrary?
- correct answer effective
8. (true or false) the average value of an alternating current or voltage is the average of all
the instantaneous values during on alteration.
- correct answer true
9. (true or false) it requires more energy to keep current flowing than it does to stop or start.
1. What rule can be used to determine the direction of the current assuming a closed path is
provided across the ends of a conductor loop?
- correct answer left hand
2. (true or false) an individual cycle of any sine wave represents a definite amount of time. -
correct answer true
3. What is the correct definition of the time it takes for a sine wave to complete one cycle? -
correct answer period of waveform
4. Which symbol represents wavelength?
- correct answer λ
5. What term is referred to as the number of complete cycles of alternating current or
voltage completed each second?
- correct answer frequency
6. How many maximum or peaks values occur during each complete cycle of alternating
current?
- correct answer two
7. All meters are calibrated to indicate what values of current and voltage unless marked to
the contrary?
- correct answer effective
8. (true or false) the average value of an alternating current or voltage is the average of all
the instantaneous values during on alteration.
- correct answer true
9. (true or false) it requires more energy to keep current flowing than it does to stop or start.
