CBSE Class 12-science Answered
In electrostatics, we talk about point charged particles. But where and how do the free charged particles do exist.
Thank you.
Asked by sona | 22 Jan, 2020, 06:49: PM
Expert Answer
Charges are produced in materials by friction . When we rub a glass rod with silk, some of the
electrons from the rod are transferred to the silk cloth. Thus the rod gets
positively charged and the silk gets negatively charged.
electrons from the rod are transferred to the silk cloth. Thus the rod gets
positively charged and the silk gets negatively charged.
When we rub a plastic rod with fur, the plastic rod becomes negatively charged and the fur becomes positively charged.
When we make charged materials in contact with insulating material charges are transferred to insulating material.
This is charging by conduction.
when we bring a charged glass rod near a small metal piece, positive charges in the glass rod induce
negative charges on surface of small metal piece. This is charging by induction.
Hence charges can be created by these process and the created charges appear on the surface of materials.
In electrolytic cell, by chemical reaction charged particles ( negative ions and positive ions) are produced
and is getting accumulated at electodes giving positive and negative polarity.
When parallel plate capacitor is connected to battery, charges accumulate on capacitor plates.
Plate onnected to positive terminal gets positive charge.
Similarly plate connected to negative terminal gets negative charge
Answered by Thiyagarajan K | 22 Jan, 2020, 08:36: PM
Concept Videos
-
Electric Charge - Part 1
This video describes the concept of charge, conductors and insulators, and ... -
Gold Leaf Electroscope - Part 1
This video explains the basic properties of electric charges. -
Coulom's Law of Electric Force - Part 1 ...
This video describes Coulomb's law to calculate the force between any two p... -
All about electric fields
Define electric field in terms of Coulomb's force. Apply superposition prin... -
Electric Field Lines
This video explains the representation of electric field due to a single ch...
CBSE 12-science - Physics
Asked by ankush76728 | 06 May, 2024, 04:52: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by ankush76728 | 05 May, 2024, 09:55: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by heymindurownbusiness | 04 May, 2024, 11:15: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by talulu | 01 May, 2024, 05:14: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by kanishkg511 | 30 Apr, 2024, 07:25: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by sahoobanita89 | 30 Apr, 2024, 05:10: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by divakar.9124 | 27 Apr, 2024, 10:42: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by panneer1766 | 24 Apr, 2024, 01:52: PM
ANSWERED BY EXPERT
