Home
Class 12
PHYSICS
A point charge Q is placed at the point ...

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 ?

Text Solution

Verified by Experts

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.
Promotional Banner

Similar Questions

Explore conceptually related problems

A negative point charge placed at the point A is

A negative point charge placed at the point A is

In the part of a circuit shown in fig. 5.266, the potential difference (V_G - V_H) between points G and H will be

Asseration: A point charge q is placed at centre of spherical cavity inside a spherical conductor as shown. Another point charge Q is placed outside the conductor as shown. Now as the point charge Q is pushed away from conductor, the potential difference (V_(A) - V_(B)) between two points A and B within the cavity of sphere remains constant. Reason: The electric field due to charges on outer surface of conductor and outside the conductor is zero at all points inside teh conductor.

Four charges Q-Q, Q-Q are placed at the corners of a square as shown . The potential is zero at points

Positive and negative charges of 1 muC each are placed at two points as shown in the figure. Find the potential difference between A and B

The potential difference (V_A-V_B) between the point A and B as shown in the figure is

An infinitely long line of linear charge density lambda is shown in the figure. The potential difference V_(A)-V_(B) between the two points A and B is