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10/22/21, 8:29 PM, Classplus, TEST, Physics + Chemistry (#CET Level-UT-XI-24.10.2021), QUESTIONS, SECTIONS, 1. Physics (Electrostatics) - 50 Questions, 2. Chemistry (Unit 14, 15) - 50 Questions, Section 1: Physics (Electrostatics) -50 Questions, 1 Charge is a, O Scalar quantity, O vector quantity, O tensor quantity, dimensionless, Correct: +1, 2 Dimensional formula for charge is, O M! L0 T1 A-1, O M0 LO T1 A1, O M! L1 Tl A1, O M! L-2 T-1, Correct: +1, 3 If a glass rod is rubbed with silk it acquires positive charge because, O protons are added to it, O protons are removed from it, O electrons are added to it, O electrons are removed from it, Correct: +1, 4 The existance of a negative charge on a body implies that it has, O lost some of its electrons, O lost some of its protons

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10/22/21, 8:29 PM, Classplus, O acquires some electrons from outside, O acquires some protons from outside, Correct: +1, 5 An isolated conducting sphere is given positive charge. Its mass, increases, decreases, O remains same, O mass is not involved, Correct: +1, 6 When a solid body is negatively charged by friction , it means that body has, O acquired excess of electrons, O lost some protons, acquired some electrons and lost a lesser number of protons, O lost some positive ions, Correct: +1, 7 Charges resides on the, outer surface of the charged conductor, O inner surface of the charged conductor, O inner as well as outer surface of the charged conductor, O at the centre of charged surface, Correct: +1, 8 The fact that electric charges are integral multiples of the fundamental electronic charge, was proved experimentally by, O Planck, O J.J. Thomson, O Einstein, O Millikan, Correct: +1, 9 Select the correct alternative, o the charge gain by the uncharged body from a charged body due to conduction is, equal to charge initially present, O the magnitude of charge increased withthe velocity of charge

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10/22/21, 8:29 PM, Classplus, O charge can not exist without matter although matter can exist without charge, O attraction is the true test of electrification, Correct: +1, 10 Electric charge on a body at rest produced, electric field, magnetic field, O both 'a' and 'b', O gravitational field, Correct: +1, 11 An electric charge in uniform motion produce, an electric field only, a magnetic field only, both electric and magnetic field, O neither electric nor magnetic field, Correct: +1, 12 Electromagnetic energy is radiated by, O stationary charge, O charge in uniform motion, O an accelerated charge only, an accelerated charge and a charge in uniform motion both, Correct: +1, 13 The static electricity is produced due to the, O friction, O induction, O both 'a' and 'b', O neither 'a' nor 'b', Correct: +1, 14 When a body is charged by induction, then the body, O gets electrons in excesses, does not lose any charge, O loses whole of the charge on it

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10/22/21, 8:29 PM, Classplus, O loses part of the charge on it, Correct: +1, 15 If a body is positively charged then it has, O deficiency of electrons, excess of electrons, excess of neutrons, O deficiency of neutrons, Correct: +1, 16 Which of the following is the unit of electric charge, O coulomb/volt, O coulomb, ampere-second, O both 'b' and 'c', Correct: +1, 17 Frictional electricity is produced on two bodies due to, O loss of electrons by one body, O loss of proton by one body, O loss of electrons by one body and equal number of electrons gained by other body, O loss of proton by one body and equal no. of protons gained by other body, Correct: +1, 18 In C.G.S. system e.s.u. of charge is, stat coulomb, frankline, O absolute coulomb, O 'a' and 'b', Correct: +1, 19 Dry hair when rubbed with comb acquire, O positive charge and comb acquire equal negative charge, no charge, O negative charge and comb acquires equal positive charge, positive charge and comb acquires more negative charge, Correct: +1

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10/22/21, 8:29 PM, Classplus, 20 Any amount of either positive or negative charges produced by friction must be equal to, the charge on integral number of, O protons, O electrons, O both protons and electrons, O alpha particles, Correct: +1, 21 The numbers of electrons that should be removed to produce a charge of 1C on, conductor is, 1.6 x 1010, 1019, 1.6, 1, 1.6 x 10-10, 1019, Correct: +1, 22 The magnitude of electrostatic unit of charge in S.I. system is, 1.602 x 10-19c, 0.33 x 10-9 C, 3 x 108 C, 3x 10-19 с, Correct: +1, 23 A sure test of electrification is, O attraction, O repulsion, O friction, O induction, Correct: +1, 24 When 1012 electrons are removed from a nutral metal sphere, the charge on the sphere, becomes, Ο 0.16 μC, O -0.16 µC, O 32 µC