A. By burning coal B. By using the force of water C. By nuclear reactions D. By wind turbines 相关知识点: 试题来源: 解析 B。在水力发电站中,电力是通过水的力量产生的。A 选项燃烧煤是火力发电;C 选项核反应用于核电站;D 选项风力涡轮机用于风力发电。反馈...
wind, or water, but also include oil or coal, which are the fossil fuels we still burn on a large scale. Most often, energy from these sources is converted into electricity first, using power plants to convert coal or water, solar cells for sunlight, and wind turbines...
As we've already discussed, a generator converts mechanical energy into electricity. A motor works on the same principles, but in the opposite direction -- it converts electrical energy into mechanical energy. To do this, a motor needs a special kind of magnet known as an electromagnet. In...
Fossil fuels such ascoaland oil is used to generate heat. This heat converts water into steam at very high temperature and high pressure. This steam at high pressure drives a steam turbine. Therotating shaft of the steam turbineis coupled to the armature of the alternator to generate electric...
Step-down transformer: Once the electricity reaches its destination, another transformer converts the electricity back to a lower voltage safe for homes to use. Homes: Electricity flows into homes through underground cables. Appliances: Electricity flows all round your home to outlets on the wall. ...
As we've already discussed, a generator converts mechanical energy into electricity. A motor works on the same principles, but in the opposite direction -- it converts electrical energy into mechanical energy. To do this, a motor needs a special kind of magnet known as an electromagnet. In...
Then, as an important measure to improve the level of urban innovation, does the innovative city pilot policy improve the efficiency of urban carbon emission? Based on this logic, we take the pilot policy as the origin and concentrate on the pollution and emission reduction effect of the ...
But when FDI comes from pollution-intensive industries such as electricity, coal and others, as the size of FDI increases, emissions of sulfur dioxide and carbon dioxide increase accordingly, and firms have to add more environmental input costs to improve the environmental quality in order to ...
The electricity generated by a solar system is direct current, so you'll need an inverter to convert it into alternating current. And as we discussed, apart from switching DC to AC, some inverters are also designed to protect against islanding if your system is hooked up to the power grid...
As we've already discussed, a generator converts mechanical energy into electricity. A motor works on the same principles, but in the opposite direction -- it converts electrical energy into mechanical energy. To do this, a motor needs a special kind of magnet known as anelectromagnet. In ...