сделать два задания The conducting materials give green light to electrons which move from one atom to another when the potential difference is applied across them. This flow of electrons in a closed circuit is called current. On the basis of the direction of movement of electrons in a closed circuit, the electric current is mainly classified into two types, i.e., the alternating current and the direct current.
The current which changes its direction at a regular interval of time such type of current is called alternating current. Direct current is unidirectional or flows only in one direction.
The charges in the alternating current flow either by rotating a coil in the magnetic field or by rotating a magnetic field within a stationary coil. In direct current, the charges flow by keeping the constant magnetism along the wire.
The frequency of the alternating current give or take 50 to 60 hertz depends on the country standard, whereas the frequency of the direct current always remains zero.
The power factor of the alternating current lies between zero to one, whereas the power factor of the direct current always remains one.
The alternating current can be graphically represented through different irregular wave shape such as triangular wave, square wave, periodic wave, the saw-tooth wave, sine wave, etc. The direct current is graphically represented by the straight line.
The alternating current transmits over a long distance with some losses, whereas the direct current transmits over very long distances with negligible losses.
The alternating current is converted into direct current with the help of rectifier whereas the direct current is converted into alternating current with the help of the inverter.
Few substations require for the generation and transmission of the alternating current. Extra substations require for the transmission of direct current.
The alternating current is used in industries, factories, and for the household purposes. The direct current is mainly used in electronic equipment, flash lighting, hybrid vehicles, electroplating, electrolysis, for exciting the field winding of the rotor, etc.
1. Выпишите из текста предложения, содержащие герундий / герундиальный оборот.
2. Найдите в тексте английские идиомы, выпишите и переведите их.
the contesting states- two states or two conditions or two people etc opposing each other
the contracting states- two states or two conditions or two people etc concuring each other
depositary state is some kinda organisation to which multilateral treat is entrusted which means this organisation is responsibke to treat some countries or such kinda organisation
dependent state is the state government or organisation which depends on another country or organisation and do not have enough power to control everything (e.x Russia is federation it includes several countries in it and these countries is dependent to Russia)
Yes, boys and girls, once again it is Todd from Twitch here to dazzle and astound with yet another collection of wonders and oddities from around the globe. Once again it is time for International Eye Candy. But before beginning with the Eye Candy proper I'm going to take a wee moment of your time to plug a little something. Twitch is trying a little something new this weekend for three days only – December 12th, 13th and 14th – we will be streaming a complete film for free within our pages. Why mention this here? Well, let's just say I read the talkbacks and have noticed - *ahem* - a certain fondness for free movies amongst the IEC readership. It's all about you, kids, it's all about you. The film in question is Robert Pratten's MINDFLESH, a very Cronenbergian stew of sex, psychosis and alien invasion. You can find trailers for it here. So, once again, that's MINDFLESH, for free, on Twitch this coming Friday through Sunday. And there aint nothin' cheaper than free. There, now. And to thank you for sitting through my little advertisement I now present to you the brand new poster for Phil Claydon's LESBIAN VAMPIRE KILLERS. Life is