Semiconductor E...

Figure shown a DC voltage regulator circuit, with a Zener diode of breakdown voltage = $$6V$$. If the unregulated input voltage varies between $$10 V$$ to $$16 V$$, then what is the maximum Zener current ?

At equilibrium, in a p-n junction diode the net current is

In the given circuit, diode $$D$$ is ideal. The potential difference across $$4\Omega$$ resistance is:

What is the plate current in a diode valve under the space charge limited operation, when the plate potential is $$60\ V$$? In a diode valve, the plate current is $$320\ mA$$, when the plate potential is $$240$$ volts:

The impurity added in germanium crystal to make $$n-$$ type semi-conductor is:

In the given diagram, assume that diode is not ideal. The drift current for diode is $$40\mu A$$. The potential difference across the $$4\Omega$$ resistance is:

What is the work function of tungsten at $$1500\ K$$ temperature, when a diode valve with a tungsten filament works at $$1500\ K$$? Assume the work function of tungsten at $$0\ K$$ is $$4.52\ eV$$:

In an insulator, band gap of the order of?

The energy gap between conduction band and valence band is of the order of $$0.07\ eV$$. It is a:

If the two ends of a p-n junction are joined by a wire,