Электрический ток
электрический ток это движение электронов. электрический ток идет по проводу и наполняет его. Напряжение - это причина движения электрического тока, без напряжения нет тока, без тока нет напряжения. в качестве источников напряжения используют аккумуляторы, гальванические элементы, генераторы. Единицей измерения электроэнергии является вольт, электрический ток измеряется в амперах, единицей электрического сопротивления является Ом. Для измерения электрического напряжения используется вольтметр. Вольтметр подключается параллельно нагрузке (потребителю).
1. It’s very important that we all work together on this project, can’t you with us, please - cooperate
2. The kids all sleep upstairs but our bedroom is on the first floor.
3. Everyone must take off their shoes when they come into our house; my dad insists on it and gets angry if you don’t.
4. Hey, Bob, do you think we’ll manage to make it to the party by five, even though you work until four-thirty and we have to drive twenty miles?
5. Ms. Smith is going over you report right now, looking for solutions to our scheduling problems.
6. If you don’t shut off that video game right now and come to dinner, you can’t have dessert.
7. Don’t you just love the old architecture all over Italy? The castles, the churches, even the houses!
8. If Jane wants to go to Florida on vacation this year, she will have to pinch pennies from now on. She doesn’t have any money in the bank, and she just bought a new car.
1. He said he had ordered a pizza for dinner
2. She asked to her brother if he had painted that painting
3. The plumber asked to them where the bathroom was
4. She said to her friend to let's go to the cinema
5. He asked the secretary to be quick with the information