A hollow conducting sphere of radius \(1~\text{m}\) is given a positive charge of \(10~\mu\text{C}\). The electric field at the centre of the hollow sphere will be:
1. \(60\times10^{3}~\text{Vm}^{-1}\)
2. \(90\times10^{3}~\text{Vm}^{-1}\)
3. zero
4. infinite
If a charge \(Q\) is situated at the corner of a cube, the electric flux passing through all six faces of the cube is:
1. | \(\frac{Q}{6\varepsilon_0}\) | 2. | \(\frac{Q}{8\varepsilon_0}\) |
3. | \(\frac{Q}{\varepsilon_0}\) | 4. | \(\frac{Q}{2\varepsilon_0}\) |
If a charge Q µC is placed at the centre of the cube, the flux (In SI unit) coming out from any surface will be:
1.
2.
3.
4.
A charge q is located at the centre of a cube. The electric flux through any face is:
1.
2.
3.
4.