4. 5. 6. 7. 3 A point charge of + 12C is at a distance 6cm vertically above the centre of a squared of side 12cm as shown in figure. The magnitude of the electric flux through the square will be.............. 103 Nm/C. 6cm +q shiksho 12cm 512 identical drops of mercury are charged to a potential of 2V each. The drops are joined to form a single drop. The potential of this drop is................. V. A coil of inductance 2H having negligible resistance is connected to a source of supply whose voltage is given by V = 3t volt. (where t is in second). If the voltage is applied when t = 0, the energy stored in the coil after 4s is..............J. The potential energy (U) of a diatomic molecule is a function dependent on r (interatomic distance) as U= 3 10 ++ Where, a and are positive constants. The equilibrium between two atoms will be where a =. ( 2a B