Вариант 2

1. Translate. Переведитетекст:

Faraday's Experiment

Faraday knew from his long study of electricity that magnetism should be able to produce a current, as well as vice versa. In spite of his various failures, the idea of producing a current directly by magnetic action remained firm in his thoughts. One of his friends said later how at this period of his long life Faraday used to carry about with him in his pocket a small rough model of electro-magnetic apparatus. This consisted simply of an inch-long straight iron core with some turns of copper wire wound round it. The basic idea he had in mind was this: if an electric current in a wire can produce a magnetic effect, why should not a magnet near a conducting wire produce an electric current?

2. Translate. Перевести на русский язык:

electricity, magnetism, various, directly, magnetic, action, really, successful, immediately, reaction.

3. 2. Translate. Перевести на русский язык:

1) Faraday knew that magnetism should be able to produce a current.

2) He had produced electricity through magnetism which had never been done before.

3) Faraday used to carry about with him a model of electromagnetic apparatus.

4. Find the correct answer. Выбратьправильныйвариант: In spite of his various.... Faraday was sure that magnetism should be able to produce a current.

a) failures b) purposes c) magnets

5. Find the correct answer. Выбратьправильныйвариант:

Anyone who has a coil of wire, a.... magnet and a sensitive current indicator may repeat Faraday's experiment.

a. ) big b) bar c) copper

6. Find the correct answer. Выбратьправильныйвариант:

Amplifying the current, the scientist.... the necessary results

a) deflected b) got c) switched on

7. Complete the sentence. Закончитьпредложение

Faraday's basic idea was that a magnet near a conducting wire should be.....

a) on opposite sides of the ring b) able to produce an electric current

8. Complete the sentence. Закончитьпредложение

Faraday separated each turn.....

a) by string for insulation purposes b) fed from the battery

9. Complete the sentence. Закончитьпредложение

Faraday wound long coils of thin copper wire....,

a) he was disappointed b) on opposite sides of the ring

10. Makethesentence. Составить предложение:

by, produce, wanted, electricity, Faraday, to, electromagnetism.

11. Translate. Перевести на английский язык:

1) Идея получения тока непосредственно действием магнита не оставляла его мыслей,

2) Обычно Фарадей носил в кармане маленькую модель электромагнитного прибора.

12. Answer the questions. Ответитьнавопросы:

1) What was Faraday famous for?

2) What was his idea?

3) What can you say about a small model of electro-magnetic apparatus,

Вариант 3

1. Translate. Переведитетекст:

The Discovery of Magnetic Induction.

The discovery in 1820 that there was a close connection between electricity and magnetism was very exciting -until then, the two subjects had been considered as quite independent. The first discovery was that currents in wires make magnetic fields; then in the same year, it was found that wires carrying current in a magnetic field have forces on them. In 1840 Faraday discovered - electric effects exist only when there is something changing. If one of a pair of wires has a carrying current, a current is induced in the other, or if a magnet is moved near an electric circuit, there is a current. We say that currents are induced.