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

What will be the current flowing through the $6 \,K \Omega$ resistor in the circuit shown, where the breakdown voltage of the zener is $6\, V$ ?

The decimal number equivalent to a binary number 1011001 is

In a common emitter configuration, a transistor has $\beta = 50$ and input resistance $1\, k\Omega$. If the peak value of a.c. input is $0.01\, V$ then the peak value of collector current is