Nothing appears on the electroscope, since the disc has been connected to the earth, and is therefore at zero potential.
The leaves of the latter will separate showing that the electroscope is charged.
This he appropriately called a versorium; we would call it an electroscope.
At the lower end of the tube are two gold leaves as in an electroscope.
The electroscope is not made to detect the presence of energy except when set free as electricity.
In its simplest form the electrometer is called the "electroscope."
When the spark passed the cells charged up the electroscope.
The general appearance of one form of electroscope is shown in fig. 7.
(D) Charge the electroscope with F C until the carbon is strongly repelled.
First charge the gold leaves of the electroscope by touching the knob with a glass rod rubbed on silk.