3B Scientific Drip Cup with Basin User Manual
3B SCIENTIFIC® PHYSICS
Drip cup with collector 8496410
Instruction sheet
08/06 SP
1 Drip cup
2 Handle
3 Glass stopcock
4 Collector
5 4-mm plug
1. Description
The drip cup with collector is used in conjunction
with an electric field meter to investigate electrostatic charge on liquids.
The apparatus consists of two aluminium vessels,
one of which has a hole in the bottom into which it
is possible to insert a glass stopcock with a rubber
stopper. The second vessel is equipped with a 4mm plug which can be connected to the electric
field meter.
2. Scope of delivery
1 Drip cup
1 Collector
1 Glass stopcock
1 Rubber stopper
1 Handle
3. Technical data
Drip cup:
Dimensions: 75 mm x 90 mm Ø
Hole: 17 mm Ø
Weight: 82 g
Collector:
Dimensions: 72 mm x 84 mm Ø
Weight: 82 g
Rubber stopper: 25 mm x 15/21 mm Ø
Length of glass cock: 180 mm
1
4. Operation
In order to conduct the experiment, the following
apparatus is additionally required:
1 Electric field meter 8533011
1 Escola 10 multimeter 8531160
1 Plastic rod 1501517
1 Retort stand, V-base 8611160
1 Stainless steel stand rod 8611330
1 Cross-bosshead 8613170
• Connect the collector to the electric field me-
ter.
• Insert the rubber stopper connected to the
glass stopcock into the hole in the drip cup.
• Set up the drip cup on the stand so that the
glass stopcock is approximately 10 cm above
the collector.
• Half fill the drip cup with water.
• Switch on the electric field meter.
• Use the plastic rod to induce a charge on the
collector.
• Use the voltmeter to measure and record the
charge on the collector.
• Open the glass stopcock to allow the water to
drip, drop by drop, into the collector below.
• Count the number of drops and observe the
voltmeter readings.
• Read the charge recorded by the meter after
every drop of water.
0
V
V =
10 V
E U
1 Volt
10 V
Offset
Fig. 1: Experiment set-up for drip cup with collector
Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com
3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com
Subject to technical amendments.
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