Answer: 2.05µC
Explanation:
First object carries a charge of -6.1µC Second object carries a charge of -2.0 µC.
To make the charges same, divide the difference between both charges by 2
i.e - 6.1µC - (-2.0µC)
= -6.1µC + 2.0µC
= -4.1µC
Then, divide -4.1µC by 2
i.e (-4.1µC) /2
= -2.05µC
Now, transfer -2.05µC from first object to second object
i.e (-6.1µC - (-2.05µC))
= - 6.1µC + 2.05µC
= - 4.05µC
Thus, the second object becomes
(-2.0µC + (-2.05µC))
= -2.0µC -2.05µC
= - 4.05µC (note that the charges on first and second objects are now the same)
Thus, 2.05µC of electrons must be transferred from the first to the second object so that both objects have the same charge