The charge +q, -q are at A and B, respectively as shown below. The distance between…

The charge +q, -q are at A and B, respectively as shown below. The distance between A and B is 2R. Now a test charge qo is moved from 0 to C along the semicircle. Given the reference point of zero potential is at infinity, what is the potential difference Voc? с A +9 B -9 o KR LR R Select one: 9 STEOR 9 OTTER Others 9 TEOR I choose not to answer (NO mark will be deducted) 9 δπερR