Measurement
of Coulomb’s constant with Coulomb’s law apparatus 

Coulomb’ law
apparatus with micrometer : max 25.5mm

Condenser plate
: diameter 125mm, 150mm

Kilovolt DC/AC
Power supply

Display :
Digital FND type(5Digit)

DC Output :
0~6000V     (Selector 0)

: 6000~30000V
(Selector 1)

AC Output :
6.3V (3A)

Power Source: AC 220V, 60Hz

Dimension :
250×250×150 mm

Weight : 5.7Kg

Electronic
balance : max 300g

Range : 310g

Resolution : 0.005g

Display : LCD 6 digit

Size : 170×250×65
mm

Power : DC 12V, 300mA 

High
voltage lead wire(1) : 1m