Positive/negative electron transfer?

[Cheesycheese213]

Can a positively charged and negatively charged object charge by conducting? If so, is it possible to make a neutral charge again?

 

[kuruman]

Yes and yes but the objects must be conductors.

 

[ZapperZ]

Can a positively charged and negatively charged object charge by conducting? If so, is it possible to make a neutral charge again?

This appears to be a straight forward static electricity case.

Hold a positively-charged object near the isolated conductor. Ground the conductor. Remove the connection to ground, and THEN remove the positively-charged object. Now the conductor is negatively charged.

Similarly procedure to charge the conductor positively.

To make the conductor neutral again, ground it.

Zz.