BEFORE SUBMITTING YOUR EXAM – YOU MUST RIP UP YOUR SCRATCH P…

BEFORE SUBMITTING YOUR EXAM – YOU MUST RIP UP YOUR SCRATCH PAPER & SELECT THE RESPONSE BELOW. Do NOT select the response until you rip up your scratch paper. Failure to rip up your scratch paper before submitting the exam will invalidate your exam. Honorlock reports will be carefully reviewed.

We have three identical metallic spheres A, B, C. Initially…

We have three identical metallic spheres A, B, C. Initially sphere A is charged with charge 3Q, while B and C are neutral. First, sphere A is brought into contact with sphere B and then separated from it. After that, sphere A is brought into contact with sphere C and then separated from it. Finally, sphere A is brought into contact with sphere B again, and then separated from it. What is the final charge of sphere A