MCQs based Assignment Class 12 Physics 2023-24 Electrostatics and Current Electricity June 24, 2023June 18, 2023 by Parul Q-1.With the increase in length of a conductor its Resistivity: Increases decreases may increase or decrease does not change Q-2. What is the nature of gaussian surface involved in Gauss's law of Electrostatics? Scalar Electrical Magnetic Vector Q-3.SI Unit of electric Charge is ? Select one option 1.Ampere 2.Coulomb 3.Volt 4.None Q-4 Which of the following characteristics of electrons determines the current in a conductor? Drift velocity alone Thermal velocity alone Both drift & thermal velocity Neither drift nor thermal velocity Q-5The potential in the equitorial plane of a dipole having dipole moment P is infinite zero maximum equal to p Q- 6.When charge of a body becomes half, the electric field becomes half twice thrice No change Q-7.What is the angle between the electric dipole moment and electric field strength due to it on the equatorial line? 0 90 180 None of the above Q-8.Charges+/- 20nC are separated by 5mm.Calculate the magnitude of dipole moment. 10^-10 Cm 10Cm 2× 10^-6 Cm 10^2 Cm Q-9 At absolute zero, Germanium acts as: Insulator Metal Non -Metal Semiconductor Q-10. Ratio of magnitude of electric force in air & water between an electron & proton is: K 1/K 1 Submit Δ Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on WhatsApp (Opens in new window)Like this:Like Loading...