Charging by Rubbing
Charging by Rubbing: Overview
This topic describes how we can charge various objects just by rubbing them to other objects and acquires a small charge through an activity.
Important Questions on Charging by Rubbing
Explain what happens If a charged body is brought near an uncharged body.
If a charged body is brought near an uncharged body it induces same charge on it.
Charged body contains equal amount of positive and negative charges.
An electroscope is a device which is used to find whether an object is charged or not.
_____ (Attraction/ Repulsion) is used as a test for identifying an electrically charged object.
Like charges _____ (repel/attract) each other.
Why do two bodies get charged by rubbing against each other?
On rubbing an ebonite rod with fur it gets negatively charged, why?
Keep a spent tube light in a dark place. Rub it vigorously with a thin polythene bag. What happened? Why?
Unlike charges repel each other and like charges attract each other.
Atoms or a group of atoms with a positive or negative charge in an electrolyte.
Like charges repel each other.
What are the interactions between two charges?
Charges acquired by rubbing is called _____.
Amber is _____ (resin/ stone/ hard material).
How are negative and positive charges related to each other?
What do you mean by static electricity?
When do two inflated balloons attract each other?
