Run a dry plastic comb through dry hair or rub it with a dry cloth
PHYSICS · Multi-part · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance
Problem
Run a dry plastic comb through dry hair or rub it with a dry cloth. Electrons are transferred from nylon to the cloth. Slowly bring the charged comb near a thin stream of water from a tap.
(1) Record and explain your observations using annotated diagrams.
(2) Predict the results if the experiment were repeated with ethanol, which is less polar than water, and cyclohexane, which is non-polar.
(3) Explain why poor results are obtained in humid conditions.