Two identical metal spheres a and b are in contact. both are initially neutral. 1.0× 10 12 electrons are added to sphere a, then the two spheres are separated. part a afterward, what is the charge of sphere a? express your answer with the appropriate units. q a q a = nothing nothing submitrequest answer part b afterward, what is the charge of sphere b? express your answer with the appropriate units. q b q b = nothing nothing submitrequest answer provide feedback next

8 x 10^-8 C on both the spheres.

Explanation:

Number of electrons added to A = 1 x 10^12

As the sphere A and B are identical to each other so the charge is shared equally.

Charge of one electron = 1.6 x 10^-19 C

Charge on A after wards

= number of electrons after wards x charge of one electron

qA = 0.5 x 10^12 x 1.6 x 10^-19 = 8 x 10^-8 C

Similarly, the charge on sphere B afterwards

= number of electrons after wards x charge of one electron

qB = 0.5 x 10^12 x 1.6 x 10^-19 = 8 x 10^-8 C