598343
| Question | Answer |
| name 3 uses of static electricity | restarting the heart- defibrillators; reducing smoke particles in chimneys- dust precipitators; spraying |
| explain how defibrillators work | paddles charged+put in good electrical contact with patient's chest; defibrillator discharges into patient; charge passes through them to make the heart contract |
| how do dust precipitators remove smoke particles from chimneys?? | dust passes through charged metal plates/grids; becomes charged; attracted to earthed plates; forms larger particles; falls back down chimney |
| the metal plates in dust precipitators are at a high what?? | voltage |
| diagram of electrostatic dust precipitators: |
Image:
ph_elect28.gif (image/gif)
|
| this is a man with defibrillators: |
Image:
defibrillator (image/jpg)
|
| what happens when you touch an electrostatic generator?? | |
| how does crop spraying work?? | paint gun negatively charged; paint particles negatively charged; repel+spread out; panel positively charged; paint attracted to panel |
| what charge is the car panel after it has been sprayed?? | no charge/neutral |
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