Both the carrier mobility and the diffusivity decrease as the doping concentration of silicon is increased. Table P3.11

provides a few data points for μn and μp versus doping

concentration. Use the Einstein relationship to obtain the

corresponding values for Dn and Dp.

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed