Semiconductor E...

Zener diodes with breakdown voltage ranging over 2V- 200 V are commercially available. Breakdown voltage of a zener diode

In a p-n junction diode, not connected to any circuit

Which of the following is a correct statement about current carrying conductor?

In the circuit shown in figure, the diode is ideal. The potential difference between A and B is?

The following figure shown a logic gate circuit with two input A and B output C. The voltage waveforms of A, B and C are as shown in second figure given. The logic gate is?

Read the following diagram and tell which of the following statements are true:

Germanium and silicon junction diodes are connected in parallel. These are connected in series with a resistance $$R$$, a milliammeter $$(mA)$$ and a key $$(K)$$ as shown in Fig. When key $$(K)$$ is closed a current begins to flow in the milliammeter. The potential drop across the germanium diode is then

For the plate voltage, the plate current in a triode valve is maximum when the potential of :

The electrical conductivity of a semiconductor increases when emf radiation of wavelength shorter the $$2480$$ nm is incident in it. The band gap (in eV) for the semiconductor is?

A non-conducting device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops to almost zero. The device may be