Question

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

Answer 1

Answer:

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