Electric Cells. 3. Читать, переводить устно, с листа, пользуясь только выписанными в тетрадь сложными словами с переводом. Проверять буду на оценку в следующий раз.

Electric Cells

1. Списать в тетрадь, выучить наизусть:

cell	[sel]	элемент
output	[ˈ autput]	емкость, мощность
bulb	[bʌ lb]	электрическая лампа
to light	[laɪ t]	зажигать, освещать
to increase	[ɪ nˈ kriː s]	увеличивать(ся), возрастать
to substitute		заменять
... and so on		и так далее

2. Translate into Russian (письменно):

[ɪ ˈ lektroud]	electrode	___________________________
[ɪ ˈ lektrə laɪ t]	electrolyte	___________________________
[stɑ ː t]	start	___________________________
[ˈ ɔ pə reɪ t]	to operate	___________________________
[ˈ aɪ sə leɪ t]	to isolate	___________________________

a. current capacity	______________________________
resistor temperature	______________________________
voltage output	______________________________
current value	______________________________
b. to start supplying energy	______________________________
to stop operating	______________________________
to start lightening	______________________________
to stop lightening the bulbs	______________________________

c. to operate well	______________________________
to operate badly	______________________________
to increase the voltage output	______________________________
to substitute the resistor	______________________________

3. Читать, переводить устно, с листа, пользуясь только выписанными в тетрадь сложными словами с переводом. Проверять буду на оценку в следующий раз.

1. The element has a trouble. It operates badly. It should be substituted by a new one.

2. The element with a trouble was substituted with a new one and the cell started operating.

Electric Cells

An electric cell is used to produce and supply electric energy. It consists of an electrolyte and two electrodes. Electrodes are used as terminals, they connect the cell to the circuit - current passes through the terminals and the bulb lights.

Cells can be connected in series, in parallel and in series-parallel. In order to increase the current capacity cells should be connected in parallel. In order to increase the voltage output cells should be connected in series. In case a battery has a large current capacity and a large voltage output, its cells are connected in series-parallel.

When cells are connected in series the positive terminal of one cell is connected to the negative terminal of the second cell, the positive terminal of the second cell - to the negative terminal of the third... and so on.

When cells are connected in parallel their negative terminals are connected together and their positive terminals are also connected.

Fig. 6 Fig. 7

In case a cell has a trouble it stops operating or operates badly. This cell should be substituted by another one.