Write the following verbs with –ing. Mind the spelling.
Date: 2015-10-07; view: 453.
Control,decrease,depend,increase,place,result,conduct, insulate, heat, emit, flow, have, apply, result, use.
4. Looking at fig.1 and complete the sentences with the following verbs in the correct form: attract, repel, heat, flow, emit.
Fig. 1. Electron flow in a vacuum tube
1. The heater … the cathode.
2. The cathode … electrons.
3. Negative voltage on the cathode … the electrons.
4. Positive voltage on the plate … the electrons.
5. Current … from one element to the other through a gas.
5. Make up questions from these words. Use is or are and put the words in order.
1. the\in\student\the\electron\describing\a\vacuum\flow\tube.
2. the\electronics\defining\physicist.
3. the\emitting\cathode\electrons.
4. the\the\electrons\cathode\flowing\from\to\the\plate.
5. the\between\grid\being placed\the\cathode\and\the\plate.
6. the\grid\the\flow\of\electrons\controlling.
7. current\from\moving\element\to\one\the\other\a\gas\through.
8. a\small\negative\voltage\being applied\to\the\grid.
9. the\decreasing\plate\current.
10. being used\for\amplification\a\triode.
11. flowing\only\current\in\direction\one.
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