2. TranslateПереведитесловаисловосочетания:

Discovery, magnetic induction, wires, magnetic fields, current, electric effects, induced, an electric circuit, connection, electricity and magnetism.

3. Translate. Переведитепредложения:

1) Electricity and magnetism subjects had been considered as quite independent subjects.

2) If currents make magnetic fields, people suggested that magnets might also make electric fields.

4. FindthecorrectanswerВыбратьправильныйвариант:

For the atom to be electrically neutral, the number of protons must be....... to that of electrons.

a) more b) equal c) less

5. Find the correct answerВыбратьправильныйвариант:

We know Isaac Newton to express the connection between........ and motion in the form of several laws.

a) electricity b) current c) force

6. Find the correct answerВыбратьправильныйвариант:

Before Faraday's discovery the only usable source of........ was the galvanic battery.

a) electricity b) magnetism c) conduction

7. Complete the sentence. Закончитьпредложение:

Artificial magnets may be made by placing.........

a) a magnet to be magnetised into a battery

b) a piece of iron or steel to be magnetised into a coil

8. 7. Complete the sentence. Закончитьпредложение:

Faraday wanted to produce electricity by.........

a) Electromagnetism b) electric circuit

9. Make the sentence. Составитьпредложение:

Was, carrying, a, have, them, discovery, that, current, magnetic, forces, the, wires, in, field, on.

10. . Makethesentence Составить предложение:

A, electricity, and, had, as, was, between, magnetism, subjects, considered, independent, there, connection, and, these, been, quite.

Вариант 4

1. Translate. Переведитетекст:

Generating an Electric Current

Alessandro Volta, a professor of physics, established the true source of the electric current. He demonstrated that it could be produced by the action of dissimilar metals. In 1800 he developed the first electric battery, a device known as a voltaic pile. Although he tried a number of different materials he found that the best results were obtained when he used silver and zinc as the two metals. The pile consisted of a series of small disks of these and of cardboard, the latter having been soaked in a salt solution.

2. Translate. Переведите слова и словосочетания:

source, dissimilar, device, a voltaic pile, silver, zinc, cardboard, soaked, salt solution, series.

3. Translate. Переведите слова и словосочетания:

1) The electric current could be produced by the action of dissimilar metals.

2) A voltaic pile consisted of a series of small disks and of cardboard.

4. Find the correct answerВыбратьправильныйвариант:

Alessandro Volta established the true... of the electric current.

a) material b) source c) field

5. Find the correct answerВыбратьправильныйвариант:

During his experiments Volta developed the first electric...

1. battery b) source c) device

6. FindthecorrectanswerВыбрать правильный вариант:

By connecting... to the top and bottom discs Volta got electric current

a) discs b) wires c) bars