List of top Physics Questions on Semiconductor electronics: materials, devices and simple circuits asked in AMUEEE

In a Bipolar Junction Transistor $ (BJT) $ , the current gain $ \beta $ is defined is

Which of the following truth tables corresponds to $ NAND $ gate.

An intrinsic semiconductor has a resistivity of $ 0.50 \Omega\, m $ at room temperature. Find the intrinsic carrier concentration, if the mobilities of electrons and holes are $ 0.39\, m^2/Volt $ , and $ 0.11 m^2/Volt \,sec $ respectively

Avalanche breakdown in a $ p $ - $ n $ junction diode is due to

Any digital circuit can be realised by repetitive use of only

An $n-p-n$ transistor is biased to work as an amplifier. Which of the following statements is false?

Pure silicon at 300 K has equal electron (n$_e$) and hole (n$_h$) concentration of $1.5 \times 10^{16} m^{-3}$. Doping by indium increases $n_h$ to $4.5 \times 10^{22}m^{-3}$ The $n_e $ in the doped silicon is

In the depletion region of an unbiased $p-n$ junction diode, there are