PHYSICS · Subjective · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields
Problem
Three identical isolated metallic spheres P, Q, and R carry charges of +6.4μC, −3.2μC, and 0, respectively.
Sphere Q is first touched to sphere R and then separated to a large distance. Afterwards, sphere Q is touched to sphere P and again separated.
(i) Determine the final charge on each sphere at the end of both contacts.
(ii) Calculate the total number of electrons that moved during each contact, clearly stating the direction of flow (towards or away from the sphere).
(iii) Using your results, verify that electric charge is conserved for the entire process.