A silicon sample is uniformly doped with donor type impurities with a concentration of $$10^{16}/cm^3$$.The electron and hole mobilities in the sample are $$1200\;cm^2/V-s$$ and $$400\;cm^2/V-s$$ respectively. Assume complete ionization of impurities. The charge of an electron is $$1.6\;\times\;10^{-19}\;C$$.The resistivity of the sample $$\left(in\;\Omega-cm\right)$$ is _____________.

A region of negative differential resistance is observed in the current voltage characteristics of a silicon PN junction if

In the circuit shown below, the Zener diode is ideal and the Zener voltage is 6V. The output voltage V₀ (in volts) is ________.

A MOSFET in saturation has a drain current of 1 mA for V_DS =0.5V. If the channel length modulation coefficient is 0.05 V^-1, the output resistance (in k$$\Omega $$) of the MOSFET is______