EC QUIZ -5

In the network shown in the figure, all resistor s are identical with R = 300 Ω. The resistance R_ab (in Ω) of the network is ___________.

For the given circuit emitter voltage is V_E = 2 V. The value of α is _______

The resistivity of a semiconductor sample is 0.00912 ohm-m at 300K. If B = 0.48 Weber/m². Hall angle for a hall coefficient of 3.55 × 10^–4m³/c is

In the arrangement of resistance shown below, the effective resistances between points A and B is

Calculate depletion layer width in Si for the given C-V characteristics. Assume permittivity of Si and SiO₂ are 10^–12 F/cm & 4 × 10^–13 F/cm area is 10^–4 cm²

Consider a silicon sample of length L = 5 cm and cross sectional area is 25 cm². It is doped by Al atom uniformly with N_A = 10¹⁶/cm³. The mobility of electrons and holes are 1200 cm²/V-sec and 350 cm²/V-sec respectively. Find the resistance offered by that sample is____ (n_i = 10¹⁰/cm², kT/q = 26 mV).

The approximated value of hysteresis voltage for the Schmitt trigger circuit shown in figure below,

The mean square value of the Random variable X, whose PDF is shown below is ________

Find open loop transfer function of a unity feedback system having second order, whose step response is shown in figure.