Question

When sugar is poured from a metal container, sugar particles and the container become charged with opposite charges due to rubbing.Design an experiment that will allow you to estimate the magnitude and the sign of the charge transferred by 1 kg of sugar, using only the following measuring devices: a stopwatch, a scale, and an ammeter that can measure very small current. Be descriptive.

Answer 1

Information: Approximately two sugar grains acquires a charge of 3.0 x 10^-11 C at a distance of 8.0 x 10 ^-5 m. And 17.6 x 10⁵ grains of sugar in a 1 KG bag.

Experiment:

a) 1 kg of Sugar poured on floor at a distance 1 m and it is measure by a scale.

b) And it is poured for t seconds and it is measured using a stopwatch.

c) Measure the current (I) on the jar while pouring the sugar on the floor using ammeter.

Using the below formula we can measure the actual charge on the jar.