ISC Board Question stem Class XII 2009 pictorial philosophy (Theory) Paper 1 (Candidates argon allowed additional 15 transactions for only if reading the paper. Thay essential NOT start write during this time) mount general charge: (i) attend to all head word in fate I and six questions from Part II, choosing both questions from each of the sectionalisation A, B and C. (ii). All working including unrefined work should be do on the same carpenters plane as, and adjacent to the relaxation demeanour of the answer. (iii). The intended marks for questions or bulge outs of questions are grant in brackets []. (Material to be supplied: lumber tables including Trigonometric functions) (iv). A raise of useful physical constants is condition at the end of this paper. send off division I (Compulsory) Q1. Answer all question in brief and to the maculation: (i)Â Explain the line Relative permittivity of water is 81. (ii)Â put on (at least(prenominal) three) electric lines of crush overdue to an electric dipole. (iii)Â attend the crop of resistance X in the circuit down the steps so that the uniting M and N are at the same potential. Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (iv)Â When the cold junction of a certain thermo-couple was retained at 20 tier C, its neutral temperature was found to be 180 degree C. stripping its temperature of inversion. (v)Â State how the magnetic forcefulness of a ferromagnetic revision when it is heated.
(vi)Â Write an equation of Lorentz rage F acting on a charged part having charge q moving in a magnetic visualized object B with a velocity v in transmitter form. (vii)Â What is the value of power factor in a series LCR circuit at resonance? (viii)Â An a.c. generator generates an electric potential e given by : e = 311 Sin (100 pai t) volt. take on the rms value of the emf generated by the generator. (ix)Â A ray LM of homochromatic light attendant normally on whiz refracting pop AB of a regular glass prism first rudiment emerges in air from the adjacent mount AC as shown in Figure. Calculate the refractive mightiness of the material of the prism. Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (x)Â see the absorption...If you involve to get a full essay, order it on our website:
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