Table of Contents
Why is it not possible to charge a metal rod held in the hand by rubbing with a cloth?
Iron rod cannot be charged by rubbing when held in hand. Iron being a good conductor of electricity, transfer the charge produced on it into our body and is further transferred into the earth through our body. Therefore, the iron rod will continuously remain charge free.
Why is it difficult to charge a metallic rod with the method of friction?
But conductors ( like metallic rod ) can not be charged by the rubbing because the have free electrons due to the movement of these free electron in side the conductor the charge will not stay at a position hence the conductor will not attained any charge.
Why a metal rod which is to be charged by friction is held by an insulating handle?
Answer: Rod A is uncharged and Rod B is charged body. A is to be charged positively by touching i.e. by conduction. So rod B should have similar charge as is required by A i.e. positive charge.
Why can’t you charge a conductor by friction?
Conductors CANNOT be easily charged by friction as the extra electrons gained can easily escape. electrons of the can are pushed away from the rod.
Why does metal not become charged?
Insulators prevent the electrons from moving and the charge remains static . Conductors , on the other hand, cannot become charged, as the electrons can move through them. Connecting a static charge to earth using a conductor (earthing ) will remove the excess charge as electrons will move to cancel out the charge.
What happens when a charged insulator is placed near a conductor?
They repel each other.
Why can conductors not be charged by friction?
Insulators can be easily charged by friction as the extra electrons gained CANNOT easily escape. Conductors: materials that allow electrons to flow through them easily. Conductors CANNOT be easily charged by friction as the extra electrons gained can easily escape. electrons of the can are pushed away from the rod.
What is the condition of a conductor?
It is a condition achieved , a physical state such that no charge anywhere is moving. Using this argument to say in a conductor . We reason as follows , we know that any conductor by definition has something has de-localised electrons / charge carriers which are free to flow inside the conductor at least .
What are the ways to charge conductors?
Ways To Charge Conductors (You Are Here!) Procedure: A metal sphere with an excess of negative charge is brought near to a neutral object. Upon contact, electron move from the sphere to the object and spread about uniformly. The metal sphere now has less excess negative charge and the object now has a negative charge.
Can charge reside inside a conductor under electrostatic conditions?
Now the Gauss’ law part , as E → is 0 , so Flux ϕ = 0 through out gaussian surface by definition of flux and thus it means by Gauss’ law that charge contained inside our Gaussian surface is 0 , So we proved that in electrostatic conditions , charge cannot reside inside a conductor using 1. A physical assumption & 2.
Why is there no electric field inside a conductor?
and other resources on the web: If there is a electric field inside the conductor they will pull on the electrons Therefore there can be no field inside the conductor It follows from Gauss’s Law that there are no charges inside