Year: 2022
Topic: Electrostatic potential and capacitance
Time :
1.
Two point charges −q and +q are placed at a distance of L, as shown in the figure. The magnitude of electric field intensity at a distance R (R ≫ L) varies as:
(1). \(\displaystyle \frac{1}{R^2}\)
(2). \(\displaystyle\frac{1}{R^3}\)
(3). \(\displaystyle\frac{1}{R^4}\)
(4). \(\displaystyle\frac{1}{R^6}\)
