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state kirchhoffs rules of current distribution in an electrical networkusing these rules verify the value of the current in the electric circuit
a parallel plate capacitor each with plate area a and separation d is charged to a potential dissimilarity v the battery used to charge it is then
deduce an expression for the electric potential because of an electric dipole at any point on its axis mention one contrasting feature of electric
explain electric flux write its si units a spherical rubber balloon carries a charge that is uniformly distributed over its surface as the balloon is
the electric field e because of a point charge at any point near it is explained as where q is the test charge and f is the force acting on it what
a cylindrical metallic wire is stretched to enhance its length by 5 measure the percentage change in its
write the relation for the force acting on a charge carrier q moving with a velocity by a magnetic field in vector notation using this relation
a convex lens of refractive index 15 has a focal length of 18 cm in air measure the change in its focal length when it is immersed in water of
the output of an or gate is linked to both the inputs of a nand gate draw the logic circuit of this combination of getes and write its truth
the radioactive isotope d decays according to the sequenceif the mass number and atomic number of d2 are 176 and 71 respectively what isi the mass
why should the material used for making permanent magnets have high coercivitywhat will be the values of input a and b for the boolean expressionwhy
an electron an alpha-particle and a proton have the similar kinetic energy which one of these particles has the main de-broglie
derive a mathematical expression for the force per unit length experienced by each of the two long current carrying conductors placed parallel to
with the help of a neat and labelled diagram describe the underlying principle and working of a moving coil galvanometerwhat is the function ofi
what is diffraction of light illustrate a graph showing the variation of intensity with angle in a single slit diffraction experiment write single
explain interference of light write two essential conditions for sustained interference pattern to be produced on the screenillustrate a graph
the primary coil of an ideal step-up transformer has 100 turns and the transformation ratio is also 100 the input voltage the power are 220 v and
the given circuit diagram shows a series lcr circuit linked to a variable frequency 230 v sourcea verify the source frequency which drives the
illustrate a labelled diagram of hertzs experimental set-up to produce electromagnetic wavesdescribe the generation of- electromagnetic waves using
explain the term critical frequency in relation to sky wave propagation of electromagnetic waveson a particular day the maximum frequency reflected
what is electric flux write its si unitsusing gausss theorem assume an expression for the electric field at a point because of a uniformly charged
explain the term modulation name three dissimilar types of modulation used for a message signal using a sinusoidal continuous carrier wave describe
draw a graph showing the variation of binding energy per nucleon with mass number for dissimilar nuclei describe with the help of this graph the
why is the mass of a nucleus always less than the sum of the masses of its constituents neutrons and protonsif the total number of neutrons and
what is an intrinsic semiconductor how can this material be changed into i p-type ii n-type extrinsic semiconductor describe with the help of energy