The output of the given arrangement of logic gates for $A=0, B=1$ and $A=1, B=1$ will be

A germanium crystal is doped with arsenic atoms and indium atoms simultaneously. Number of arsenic atoms used $=5 \times 10^{22}$ per $\mathrm{m}^3$ and number of indium atoms used $=5 \times 10^{20}$ per $\mathrm{m}^3$, then resulting crystal is a/an

Assuming the diodes to be of silicon with forward resistance zero, the current $$i$$ in the following circuit is

In a $$n$$-$$p$$-$$n$$ transistor $$10^{10}$$ electrons enter the emitter in $$10^{-6}$$ s. $$6 \%$$ of the other electrons are lost in the base. The current transfer ratio will be.

When in $$p$$-$$n$$ junction diode, $$p$$ is connected to the positive terminal and $$n$$ is connected to the negative terminal, then it is

Which of the following is arranged in forward bias?

Which of the following logic gates are also known as the Universal gates?

Based on the band theory of conductors, insulators and semi-conductors, the forbidden gap is smallest in