Lecture Demonstrations
Lecture Demonstrations

Electricity and Magnetism

Electrostatics

Electric Charges - Demo 1

 

Used to demonstrate the presence of electric charges

APPARATUS:
LOCATION:
     Electroscope
P1
     Electrometer
P2
     Rod
P7
     Different types of cloth (fur and silk)
P7
     Van de Graff  


Rub the rod with the fur or silk. Touch the charged rod to uncharged conductive sphere connected to electrometer to measure the charges. You can also use the electroscope. The gold leaves will spread apart indicating the presence of charges.