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Прочитайте текст и выполните задания.Electricity1. Electricity is a flow of negative charges called ...: ответ на тест 5807 - Английский язык

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Electricity
1. Electricity is a flow of negative charges called electrons. These electric charges are measured in units called coulombs. Electricity is a very versatile form of energy that can be converted into many other forms of energy, including light and heat, direct current (DC), which flows in one direction only, and alternating current (AC), which changes direction 60 times per second.
2. An electric circuit is an unbroken conducting path from, and back to, a power supply. It has three main parts: the power supply, the conductor, and the load. The power is provided by a generator or battery, the conductor carries the current, and the load is an electric device such as a lamp.
3. Unlike current electricity, static electricity does not flow. It is created when an electrically neutral substance loses or gains electrons, making it, respectively, positively or negatively charged. You can create static electricity by rubbing a balloon on your clothing. Electrons will move from the clothing to the balloon, making the balloon negatively charged and the clothing positively charged. The resulting static electricity on each will attract small, light objects such as pieces of paper.
Ответьте на вопрос:
What device is designated for the continuous flow of electric current?
Варианты ответов
  •  Electrical circuit allows electrons to flow through continuously without beginning or end.
  • The power in an electric circuit is provided by a generator or battery.
  •  In an electric circuit the load can be an electric device such as a lamp.
  • One can create static electricity by rubbing a balloon on one’s clothing.
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Вопрос задал(а): Андрей, 26 Декабрь 2014 в 10:49
На вопрос ответил(а): Астафьева Любовь, 26 Декабрь 2014 в 10:50

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Electricity
1. Electricity is a flow of negative charges called electrons. These electric charges are measured in units called coulombs. Electricity is a very versatile form of energy that can be converted into many other forms of energy, including light and heat, direct current (DC), which flows in one direction only, and alternating current (AC), which changes direction 60 times per second.
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1. Electricity is a flow of negative charges called electrons. These electric charges are measured in units called coulombs. Electricity is a very versatile form of energy that can be converted into many other forms of energy, including light and heat, direct current (DC), which flows in one direction only, and alternating current (AC), which changes direction 60 times per second.
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