13. Complete the sentences with the correct words.

1. A magnet creates a around it.
2. A has a tungsten filament closed in an envelope.
3. Some DC motors use electronic controllers instead of to reverse the direction of the current.
4. An can be DC or AC.
5. The invention of the is attributed to Edison in the late 19th century.
6. The of an electric motor is a permanent magnet.
7. bulbs are the most energy-efficient ones, even though they are quite expensive.
8. In an electric motor, a transmits the mechanical energy coming from the rotor.

14.1 Write the English equivalent of each Italian term.

1. Commutatore:
2. Rotore:
3. Motore passo passo:
4. Motore asincrono:
5. Conduttore di fase:
6. Coppia:
7. Traliccio dell’utenza:
8. Motore trifase:

15.1 Write a sentence using the word attract. aperta

15.2 Write a sentence using the word carbon. aperta

15.3 Write a sentence using the expression CFL bulb. aperta

15.4 Write a sentence using the expression single-phase motor. aperta

15.5 Write a sentence using the expression OLED bulb. aperta

15.6 Write a sentence using the expression neutral wire. aperta

16.1 Unscramble the words.

1. nabrco →
2. anietlfm →
3. nsttgeun →
4. wolg →
5. cabklen →
6. irscocetmound →
7. ags →
8. remyruc →
9. aehcilmc →
10. rucolestefn →
11. VU →
12. toonhp →

16.2 For each numbered word you unscrambled in the previous exercise, say which type of light bulb it refers to writing it next to the corresponding number below. Sometimes, more than one answer is possible.

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.