1. | \(3\sqrt3\) | 2. | \(\frac{3\sqrt3}{2}\) |
3. | \(\sqrt3\) | 4. | \(\frac{\sqrt3}{2}\) |
1. | \(\dfrac{1}{{R}^{6}}\) | 2. | \(\dfrac{1}{{R}^{2}}\) |
3. | \(\dfrac{1}{{R}^{3}}\) | 4. | \(\dfrac{1}{{R}^{4}}\) |
1. | zero | 2. | \(4\dfrac{kq}{a^2}\) |
3. | \(2\dfrac{kq}{a^2}\) | 4. | \(2\sqrt2\dfrac{kq}{a^2}\) |
1. | \(\frac{2}{\varepsilon_0}\) | slightly greater than
2. | \(\frac{2}{\varepsilon_0}\) | slightly less than
3. | \(\frac{2}{\varepsilon_0}\) | exactly equal to
4. | exactly equal to \(-\frac{2}{\varepsilon_0}\) |
1. | \(\dfrac{-Q}{4}\) | 2. | \(\dfrac{Q}{4}\) |
3. | \(\dfrac{-Q}{2}\) | 4. | \(\dfrac{Q}{2}\) |
1. | the electric field inside the surface is necessarily uniform. |
2. | the number of flux lines entering the surface must be equal to the number of flux lines leaving it. |
3. | the magnitude of electric field on the surface is constant. |
4. | all the charges must necessarily be inside the surface. |