Why electrons will flow from the ground to the sphere when the sphere is connected to the ground with a wire?
When positively charged rod is brought near sphere all electrons come on side near the rod. other side then becomes positively charged. when the sphere is connected to ground electrons flow from ground to sphere to neutralize the positive charge.
What do you think is the reason for induction of charges in a body when a charged body is brought close to it?
In the induction process, a charged object is brought near but not touched to a neutral conducting object. The presence of a charged object near a neutral conductor will force (or induce) electrons within the conductor to move. The flow of electrons results in a permanent charge being left upon the object.
Why do electrons flow to the earth?
The ground is an attractive place for electricity to flow because it is positively charged, only more so when the tiny particles in the atmosphere collide, filling clouds with negatively charged particles.
What happens when you earth a positively charged sphere?
Thus, the grounding of a positively charged electroscope involves the transfer of electrons from the ground into the electroscope. This process works because excess positive charge on the electroscope attracts electrons from the ground (in this case, a person).
What happens when a charged sphere is earthed?
If rod is removed away from earthed sphere, the induced charge on sphere gets earthed. Therefore charge on sphere will be zero. Being earthed, potential on its surface will be zero.
What happens when a negatively charged balloon hits a metal sphere?
Since like charges repel, negative electrons within the metal sphere will be repelled by the negatively charged balloon. There will be a mass migration of electrons from the left side of the sphere to the right side of the sphere causing charge within the sphere to become polarized (Diagram ii).
What happens to a sphere when a positively charged rod is removed?
Now, when the sphere is earthed the electrons from earth flow to the sphere to neutralise the positive charge collected on the right side. Now, when the positively charged rod is removed the negative charges get distributed over the metal surface and the sphere gets negatively charged.
Which side of a metal sphere is electrically charged?
When we charge a metal sphere negatively by bringing a positively charged rod near its left surface, the electrons get attracted towards the left side and positive charges on right side. Now, when the sphere is earthed the electrons from earth flow to the sphere to neutralise the positive charge collected on the right side.
How do we know that two spheres will be conductors?
They are metal spheres so we know they will be conductors. This means that the charge is able to move so when they touch it is possible for the charge on each sphere to change. We know that charge will redistribute evenly across the two spheres because of the forces between the charges.