A point charge Q is placed at the point O as shown in Fig. Is the potential difference `(V)_(A) - V_(B))` positive, negative or zero if Q is (i) possible (ii) negative ?

A point charge Q is placed at the point O as shown in Fig. Is the pote

1.	A point charge Q is placed at the point O as shown in Fig. Is the potential difference `(V)_(A) - V_(B))` positive, negative or zero if Q is (i) possible (ii) negative ?
Answer» From fig. `V_(A) - V_(B) = (kQ)/(OA) - (KQ)/(OB)` As `OA lt OB`, `:.` When Q is possitive `(V_(A) - V_(B))` is positive and when Q is negative , `(V_(A) - V_(B))` is negative.

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A point charge Q is placed at the point O as shown in Fig. Is the potential difference `(V)_(A) - V_(B))` positive, negative or zero if Q is (i) possible (ii) negative ?

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