Faradys Ice Pail

Faradys Ice Pail - 012-04393C Instruction Sheet for the...

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Instruction Sheet for the PASCO Model ES-9042A Faraday Ice Pail 012-04393C Introduction The Ice Pail designed by Faraday is an excellent product for sampling a charge distribution. It operates on the principle that a charge placed inside a conducting sur- face will induce an equal charge on the outside of that surface. For example, if a charged ball were hung inside a coffee can, the charge on the outside of the can would equal the charge of the ball. The charge can be measured with an electrometer such as the PASCO Model ES-9078 Basic Electrometer. The PASCO Model ES-9042A Faraday Ice Pail is a wire mesh cylinder measuring 10 cm in diam- eter by 15 cm deep with a wire mesh bottom. It is mounted on three insulating rods along the outer edge of a wire mesh shield. The wire mesh shield not only ensures complete vis- ibility of the experiment but also helps eliminate the problem of stray charges and AC fields. To prevent stray charges from producing erroneous re- sults it is extremely important that the person performing the experiment be continually grounded while perform- ing the experiment. The Ice-Pail needs to be temporarily grounded prior to starting the experiment. A charged object such as the PASCO Model ES-9057A Charge Producers and Proof Plane is placed in the grounded ice pail (without touching it), and the elec- trometer indicates the potential between the ice pail and ground. The greater the charge the greater the potential.
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Faradys Ice Pail - 012-04393C Instruction Sheet for the...

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