2nd PUC Physics Series – 1 December 3, 2020December 23, 2020wefru PUC Science 2nd Year Physics Series-1 quiz 2 Created on December 02, 2020 By wefru 2nd PUC Physics Series 1 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 1.Which one of the following is the unit of electric field? Coulomb Newton Volt N/C 2 / 10 2.Three charges + 3q + q and Q are placed on a st. line with equal separation. In order to maket the net force on q to be zero, the value of Q will be : +3q +2q -3q -4q 3 / 10 3.If an electric dipole is kept in a uniform electric field then resultant electric force on it is : always zero never zero depend upon capacity of dipole None 4 / 10 4.The number of electron-taken out from a body to produce 1 coulomb of charge will be : 6.25 × 1018 25 × 1018 012 20 5 / 10 5.The work done in rotating an electric dipole in an electric field: W = ME (1 – cos θ) W = ME tan θ W = ME sec θ None 6 / 10 Q.6 If sphere of bad conductor is given charge then it is distributed on: surface inside the surface only inside the surface None 7 / 10 Q.7 Electric field in a cavity of metal: depends upon the surroundings depends upon the size of cavity is always zero is not necessarily zero 8 / 10 Q.8 The dielectric constant of a metal is: 0 1 ∞ -1 9 / 10 9. 1 coulomb is equal to: 3 × 109 e.s.u. 7 × 109 e.s.u. 8 × 109 e.s.u. 45 × 109 e.s.u. 10 / 10 Q.10 Each of the two point charges are doubled and their distance is halved. Force of interaction becomes p times, w here p is : 16 1 23 44 Your score isThe average score is 20% LinkedIn Facebook Twitter VKontakte 0% Restart quiz