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q compare the emf and the potential difference comparison of emf and potential difference1 the difference of potentials among the two terminals of a
q state kirchoffs second law in electricity kirchoffs second law voltage law the algebraic total of the products of resistance as well as current in
q state kirchoffs first law in electricity kirchoffs first law current law the algebraic total of the currents meeting at any junction in a circuit
q give any three applications of the superconductorsi high efficiency ore-separating machines may be built using superconducting magnets which can be
q state ohms law at a steady temperature that the steady current flowing through a conductor is directly proportional to the potential difference
q define mobility give its unitthe mobility is defined as the drift velocity obtains per unit electric field the unit of a mobility m2v 1s
q define drift velocitydrift velocity is described as the velocity with which free electrons get drifted towards the positive terminal when an
q find the electric potential at a distance 009 m from a charge of 4 x 10-7 c the electric potential v 14piepsilono q r 9 x 109 x 4 x 10-7 9 x
q what do you mean by additive nature of charges give an exampleadditive nature of charge the entire electric charge of a system is equal to the
q write the applications of a capacitor applications of capacitors i they are utilized in the ignition system of automobile engines to eliminate
q what is microwave oven how it works microwave oven it is utilized to cook the food in a short time when the oven is manage the microwaves are
q what is a capacitor define capacitance i a capacitor is a apparatus for storing electric chargesii the capacitance of a conductor is defined like
q what are non-polar molecules give an example i a non-polar molecule is one in that the centre of gravity of the positive charges coincides with the
q three capacitors every of capacitance 3 pf are connected in parallelfind effectual capacitancethe effectual capacitance cp c1 c2 c3 9 9 9 27
q what is electrostatic shielding i it is the method of isolating a certain region of space from external fieldii it is basis on the fact that
q define electric flux give its unitthe electric flux is described as the total number of electric lines of force crossing through the given area and
q what is an electric dipole define the dipole moment two equal as well as opposite charges separated by a very small distance constitute an electric
q state the law of conservation of electric charges the entirety charge in an isolated system always remains constant for instance uranium 92u238 can
q give any three properties of electric lines of force properties of lines of forces i lines of force begin from positive charge and terminate at
q what is action of points corona discharge what is its use the seep out of electric charges from the sharp points on the charged conductor is known
q what is dielectric polarization the arrangement of the dipole moments of the permanent or induced dipoles in the direction of applied electric
q what are polar molecules give an examplei a polar molecule is one in that the centre of gravity of the positive charges is separated from the
q during lightning it is safer to sit inside car than in an open ground why the metal body of the car offers electrostatic shielding where the
state gausss law the total flux of the electric field e over whichever closed surface is equal to 1epsilono times the net charge enclosed by the