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Questions and Answers
What is the usual waveform of alternating current in most electric power circuits?
What is the usual waveform of alternating current in most electric power circuits?
- Square wave
- Triangular wave
- Sine wave (correct)
- Sawtooth wave
Why is electrical energy distributed as alternating current?
Why is electrical energy distributed as alternating current?
- It is more efficient for long-distance transmission (correct)
- It can carry information such as sound and images
- It has a constant direction of flow
- It can be easily stored in batteries
What type of current do consumers typically use when they plug kitchen appliances, televisions, fans, and electric lamps into a wall socket?
What type of current do consumers typically use when they plug kitchen appliances, televisions, fans, and electric lamps into a wall socket?
- Square wave current
- Direct current (DC)
- Alternating current (AC) (correct)
- Triangular wave current
What type of signal carries information such as sound (audio) or images (video) by modulation of an AC carrier signal?
What type of signal carries information such as sound (audio) or images (video) by modulation of an AC carrier signal?
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In which form is electric power delivered to businesses and residences?
In which form is electric power delivered to businesses and residences?
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