Experiment with an Electroscope, a Charged Rod and my hand

[MatinSAR]

Homework Statement

We bring a positively charged rod closer to the electroscope what happens if we touch the positively charged rod with our hands and then move the hand and rod away?

Relevant Equations

Electrostatics

I know that if we bring a positively charged rod closer to the electroscope, charges of electroscope are separated and the leaves of the electroscope get away from each other. but what happens if we touch the positively charged rod with our hands and then move the hand and rod away?

 

[hmmm27]

What do you think happens ? Bear in mind that "touch the positively charged rod" probably means you've grounded the rod.

 

[MatinSAR]

What do you think happens ? Bear in mind that "touch the positively charged rod" probably means you've grounded the rod.

Thank you.
I think electroscope charge will be - in the end.

 

[hmmm27]

Why ?

 

[MatinSAR]

Why ?

Because at first, the rod approaches the electroscope with a positive charge, so the conductor sphere has a negative charge and the leaves have a positive charge. when we touch the rod the leaves are repelled and negatively charged, so the distance between them is reduced and after colliding with each other, they are charged with the same charges (both negative charge) and repel each other.