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OMEGA TUITION CENTRE CHIDAMBARAM 12 th - Physics Three Mark question Test [Volume-I] I.                     Answer to all question                           25X3=75 1.       State Gauss law in electrostatics 2.       Why is it safer to be inside a car than standing under a tree during lightning 3.       Write the application of capacitor 4.       What is corona discharge? What are its advantages? 5.       State coulomb’s law in electrostatics 6.       State Ohm’s law 7.       State faraday’s laws of electrolysis 8.       Define drift velocity and mobility of electrons. Give its unit 9.       The resistance of a nichrome wire at 0 0 C is 10 Ω if its temperature coefficients of resistance is 0.004/ 0 C find its resistance at boiling point of water. Comment on the result? 10.   Three resistors are connected in series with 10 V supply as shown in the figure. Find the voltage drop across each resistor? 11.   Define pettier coefficient and write its unit?
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+2 physics one mark question

OMEGA TUITION CENTRE 12 th - Physics One Mark Test [Volume-I] I.                    Answer to all question                 Mark:50 1.       For air, ε r = ………………. a) 0 b) 1 c) 2 d) 3 2.       The force exerted by an electric field E on a charge q is …………….. a) F = E / q b) F = Eq c) F = q /E d) F = 1 / Eq 3.        The unit of electric dipole moment is …………….. a) C / m b) C 2 N -1 m -2 c) Js- 1 d) C m 4.       The relation between the electric field and the electric potential is given by …………… a) E = - dV / dr b) E = dV / dr c) E = -dr / dV d) E = dr / dV 5.       The total number of electric lines of forces passing through the given area is called electric …………. a) potential b) field c) flux d) potential energy 6.       The unit of electric potential is ……………... a) A m b) A c) volt d) Cm 7.       In micro wave oven,…………………….. are used. a) IR rays b) UV rays c) visible light d) microwaves 8.       An electric dipole contains charges +3 C and -3 C se
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