10. A plastic ball is rising in water with terminal speed v. If we use a different plastic whose density is double that of the original ball but still less that density of water, keeping the radius same, the terminal speed would be: (a) Doubled (c) More than original value (b) Half (d) Less than original value 11. The electric field line pattern for charges + 2q &- q are shown. Select the most appropriate diagram:- (A) (D) +29 12. In half deflection method, the resistance of resistance box in series with the galvanometer is 10,0002. When the galvanometer is shunted with 10 resistance, its reading drops to half the initial value. The resistance of galvanometer is:- (a) 5 (b) 10 (c) 20 (d) 25 13. Two air filled capacitors are connected as shown. The left capacitor is suddenly filled with a dielectric of constant K. The work done by battery after that is 24J. Dielectric constant K is:- 2uF HH 4F HH (a) 2 (b) 3 6V (c) 4 (d) 6 14. An infinite cylindrical current carrying wire carries a current that is uniformly distributed over its cross section. The magnetic field as a function of distance form it's axis is- (A) B (B) X (C) (D) X