Draw a diagram to represent the electric field around a positively charged sphere.
Important Questions on Static Electricity
Draw a diagram to represent the electric field between two horizontal parallel plates. The upper plate has a positive charge and the lower plate has a negative charge.
Copy and complete the following sentence, choosing the correct word from each pair.
A ______ (charged / uncharged) object may ______ (attract / repel) an uncharged object. If the object has a positive charge, it will ______ (attract / repel) electrons in the uncharged object. The objects then ______ (attract / repel) each other. This is called charging by ______ (conduction / induction).
Copy and complete the table, by adding the name of the unit and the symbol for the unit for the two quantities.
|
Quantity |
Unit | Symbol for unit |
| Force | ||
| Electric charge |
If you rub a balloon on woollen clothing, the balloon gains a negative electrostatic charge. Use the idea of the movement of electrons to explain this.
If the balloon is held close to an uncharged scrap of paper, the paper and the balloon will attract each other. Use the idea of charging by induction to explain this.
