A single-phase motor with a slightly larger power is generally equipped with two capacitors, namely the starting capacitors and the running capacitor. Before 70 years, single-phase motors were mostly a capacitor, which is a starting capacitors. After the motor is started, the capacitor is thrown off by the centrifugal switch, and only the main winding works [...]
Xinhua News Agency, Washington, August 2nd. The International Monetary Fund (IMF) stated on the 2nd that due to the impact of the new crown epidemic, the scale of global current account imbalances in 2020 will increase from the previous year, and it is expected that the scale of imbalances will further expand this year. The IMF [...]
A parallel plate capacitor is composed of two parallel metal conductor plates, separated by a dielectric material in the middle. When there is a certain potential difference between the two plates, there will be an electrostatic field distribution between the plates. There is a uniform electric field distribution in the part between the two plates. Due [...]
The latest financial report shows that the Boeing Company of the United States unexpectedly achieved profit in the second quarter, and its earnings per share changed from a loss of US$4.2 in the same period last year to a profit of US$1. Industry insiders believe that this reflects from the side that the global aviation industry [...]
The latest financial report released by the US technology company Microsoft on the 28th showed that while the cloud business promotes the company's revenue growth, tablet devices and game-related businesses have seen a significant slowdown in growth or a year-on-year decline in revenue. The company's stock price once fell by 3% after the market. 2021 fiscal [...]