Question

Need help with physics problems.

1. Can induction be used to produce a NET charge on an insulator? Explain.

2. A handheld copper rod does not acquire a charge when you rub it with a cloth. Explain why.

Answer 1

1 )

No, you can't initiate a charge in a insulator. You can bestow the impacts of free electrons on a

cover utilizing a charged source in any case.Charging by acceptance is a three stage system.

To begin with, the basically free electrons in a conductor are isolated and pushed to the rear by

bringing close to a contrarily charged object.

Second, while held isolated with the charged object,

the rear of the conductor is associated with ground so the free electrons can get off the conductor to the ground.

Third, the association with ground is broken so when the charged article is expelled the free electrons can not return on the

conductor.The conductor currently has an inadequacy of electrons or a net positive charge.

The same system can be utilized to give a net negative charge by bringing a positive charge close to a conductor.

For this situation associating the rear to ground enables free electrons to move onto the conductor from ground.

With a separator it is conceivable to cause some charge partition by bringing a charged article close,

yet this is only a bending of the charge arrangement, not a true migration of charge to the backside.

Also, when the posterior is associated with ground the minor detachment does not give a sufficiently

vast power to enable the misshaped charge to get off or on the insulator.

So an insulator can not be charged by induction.

2 )

the copper rod as it is a conductor their atoms have free electrons are in motion

so the thing is happen when this rubbing it with a cloth will not create such a difference in making it charges,

because of its no of free of electrons,

A handheld copper rod does not acquire a charge when you rub it with a cloth