1. Coulomb's law in vector form can be written as \(\vec{F}\) = (\(\frac{1}{4πε_n}\)) (\(\frac{q_1q_2}{r^2}\))\(\vec{r}\) where ε0 is the permitivity of free space. The SI units of ε0 will be:
2. The dimensional representation of cu will be :
3. When placed in a uniform field, a dipole experiences:
4. A parrot comes and sits on a bare high power line. It will:
5. The SI units of electric dipole moment are:
6. If two conducting sphere are connected after charging separately then:
7. A soap bubble is given a negative charge, then its radius:
8. In non-uniform electric field, electric dipole experiences:
9. An electron is sent in an electric field of magnitude 9.1 × 106NC-1. The acceleration produced in it is :
10. A semicircular arc of radius r is charged uniformly and the charge per unit length is λ. The electric field at the centre is: