Reading

Date: 2015-10-07; view: 459.

Pre-reading task

Active vocabulary

Unit 6. Magnetic Field.

1. (To) approximate [ə'prɔksɪmeɪt] наближатися, приблизно дорівнювати

2. Arbitrary point ['ɑːbɪtrərɪ] довільна точка

3. Clockwise ['klɔkwaɪz] за годинниковою стрілкою

4. Coulomb's law ['kuːlɒm lɔː] закон Кулона

5. Cylindrical coil [sə'lɪndrɪk(ə)l] циліндрична котушка

6. (To) decrease [ˌdiː'kriːs] зменшувати(ся)

7. Equation [ɪ'kweɪʒ(ə)n] рівняння

8. Exterior field [ɪk'stɪərɪə'fiːld] зовнішнє поле

9. Helix ['hiːlɪks] (pl. – helices) спіральна котушка, спіраль

10. Intensity [ɪn'tensɪtɪ] інтенсивність, напруженість

11. Interior field [ɪn'tɪərɪə'fiːld] внутрішнє поле

12. Loop [luːp] виток, контур, замкнутий контур

13. Magnetic force магнітна сила

14. (To) oscillate ['ɔsɪleɪt] вібрувати; коливати(ся)

15. Permanent magnet ['pɜːmənənt 'mægnɪt] постійний (електро)магніт

16. (Right-hand) screw rule ['skruː'ruːl] правило сведлика

17. Solenoid ['səulənɔɪd] соленоїд

Exercise 75.In pairs, discuss the following questions.

1. Define a magnetic field.

2. Cirle the correct word in italics to complete the sentence:

The direction of the magnetic field outside a magnet is from the north/ south pole to the north/ south pole.

Exercise 76. Read, translate the text and find the terms which correspond with these descriptions.

1. ­­_____________ a coil of wire, usually cylindrical, in which a magnetic field is set up by passing a current through it.

2. _____________ a field of force surrounding a permanent magnet or a moving charged particle, in which another permanent magnet or moving charge experiences a force.

3. _____________ a region around a charged particle or object within which a force would be exerted on other charged particles or objects.

4. _____________ a piece of magnetic material that retains its magnetism after it is removed from a magnetic field.

5. _____________ the force exerted between magnetic poles, producing magnetization.

6. ____________ a curved or circular shape in something long, for example in a piece of string; a complete circuit for an electric current.