Partial preview of the text
Download 12th Physics ALL "LAWS"& "FORMULAS" and more Cheat Sheet Physics in PDF only on Docsity!
CHAPTER 1 - Electric Charges & Fields Coulomb's Law Superposition Principle Force between two point charges varies Net force/field is vector sum of individual directly with product of charges and inversely fields. with square of distance. Gauss's Law Quantization of Charge Total electric flux through a closed surface is q=ne. equal to enclosed charge/ €0. ret Frappe riter of 2 STATES, HIQUI 2 & Produ BR Niel ad RES PRESENTS a CHAPTER 2 - Electrostatic Potential & Capacitance Relation between E Capacitance Law and V C = €oA/d for a parallel E = -dV/dx. plate capacitor. Potential due to Energy Stored in point charge Capacitor V = ka/r. U = “CV? or YaQV. yf ot — + 3 Sh ae ee a yy CHAPTER 4 - Moving Charges & Magnetism Fundamental laws governing the interaction between electric currents and magnetic fields. Biot-Savart Law a Ampere's Circuital Law Magnetic field due to current element. J B-dl = polenc. ‘ Lorentz Force Law \ _ Force on current-carrying wire F=q(E+vx B). F =BIl. Kirchhoff's Laws Magnetic Interaction Ohm's Law =I = 0 and = potential = 0. Laws V=ih Biot-Savart, Ampere, Lorentz : force. Energy in Capacitor Mobility & Resistivity U = CV? or OV. vi = YE; R = pi/A; p & T. CHAPTER 5 - Magnetism & Matter Curie's Law Magnetization Law x M = xH. V -B =0 (no magnetic monopoles). Ohm's Law Magnetization Mobility eo Magnetic Laws CHAPTER 9 - Ray Optics & Optical Instruments 1/f = (m1) (1/R1 1/Re). msini = nesinr. m=v/iuorh/nh. CHAPTER 10 - Wave Optics & CHAPTER 11 - Dual Nature of Radiation CHAPTER 10 - Wave Optics wo Huygens’ Principle Interference Law B=XD/d. Diffraction Law Polarization Law (Malus's Law) a sind = ni. | = locos28. CHAPTER T1 - Dual Nature of Radiation Einstein's Photoelectric Equation de Broglie Law eVo = hv -@. A = h/p.