  The Kelvin Water Dropper was discovered by Lord Kelvin in 1867 and it works
on the principle of electrostatic induction. A working model of Kelvin Water
Dropper is fabricated in the workshop facility of Physical Research Laboratory,
Ahmedabad. We, for the first time, performed a quantitative measurement of the
temporal development of charge using a new method that we call "Effective
Capacitance method". With this, the Kelvin Water Dropper experiment can be
introduced in undergraduate curriculum, where students can perform quantitative
measurements with the apparatus using our "Effective Capacitance method". This
should change the generally held view of Kelvin water dropper as being an
entertaining toy to a mature educational device.
