27. A parallel plate capacitor is charged and the charging battery is then disconnected. If the plates of the capacitor are moved farther apart by means of insulating handles :- (1) the charge on the capacitor increases (2) the voltage across the plates increases (3) the capacitance increases (4) the electrostatic energy stored in the capacitor decreases 28. In the circuit shown in figure, when the switch is closed, the initial current through the 10 resistor just after closing the switch is: 602 12V wwwww 302 (1) 2 A (2) 4 A (3) 3 A (4) 6 A 29. The capacitance of a capacitor, filled with two dielectrics of same dimensions but of dielectric constants K, and K2 respectively as shown will be: (A plate area) k 2 (1) 20A (K1+K2) (2) E0A (K1+K2) 2d 0A K1K 2 (3) K1 K2 2d K+K2, (4) d K1+K2