Charging by Friction and Induction

Posted in AQA GCSE P2, P2: Static Electricity by Mr A on 12 Jan 2010

Charging by Friction

 

When certain substances (such as perspex, polythene, amber or glass) are rubbed, they either lose electrons (become positively charged) or gain them (become negatively charged).

 

You can demonstrate this by rubbing a balloon on your hair, then sticking it to the wall or holding it near a can.

 

Charging by Induction

 

1) A negatively charged rod is brought towards a neutral conductor.

 

2) Negative charges are repelled from this rod.

 

3) If the conductor is then earthed, these negative charges can get even further – they flow to earth.

 

4) The conductor is no longer earthed, and the rod is taken away. The conductor is left with a positive charge.

 

 

Static Electricity Notes

Posted in AQA GCSE P2, P2: Static Electricity by Mr A on 4 Jan 2010

Marvin & Milo: Forceful Comb

Posted in AQA GCSE P2, P2: Static Electricity by Mr A on 9 Nov 2009

Marvin & Milo: On a Roll

Posted in AQA GCSE P2, P2: Static Electricity by Mr A on 9 Nov 2009

Marvin & Milo: Quiche Lightning

Posted in AQA GCSE P2, P2: Static Electricity by Mr A on 9 Nov 2009