1. | zero | 2. | \(\sqrt2\dfrac{kq}{a}\) |
3. | \(2\dfrac{kq}{a}\) | 4. | \(4\dfrac{kq}{a}\) |
Two tiny spheres carrying charges of \(1.5\) µC and \(2.5\) µC are located \(30\) cm apart. What is the potential at a point \(10\) cm from the midpoint in a plane normal to the line and passing through the mid-point?
1. | \(1.5\times 10^{5}\) V | 2. | \(1.0\times 10^{5}\) V |
3. | \(2.4\times 10^{5}\) V | 4. | \(2.0\times 10^{5}\) V |
1. | zero | 2. | \(\dfrac{kq }{2R}\) |
3. | \(\dfrac{-kq }{ 2R}\) | 4. | \(\dfrac{2kq }{ R}\) |