Definition: The transistor in which one p-type material is placed between two n-type materials is known as NPN transistor. The NPN transistor amplifies the weak signal enter into the base and produces strong amplify signals at the collector end. In NPN transistor, the direction of movement of an electron is from the emitter to collector region due …
Definition: The configuration in which the emitter is connected between the collector and base is known as a common emitter configuration. The input circuit is connected between emitter and base, and the output circuit is taken from the collector and emitter. Thus, the emitter is common to both the input and the output circuit, and …
The voltage of the power system may vary with the change in load. The voltage is normally high at light load and low at the heavy-load condition. For keeping the voltage of the system in limits, some additional equipment requires which increase the system voltage when it is low and reduces the voltage when it …
The most significant difference between the kW and kWh is that the KW measure the power generate and utilise by the devices, whereas the kWh measure the energy consumed by the electrical equipment. The other differences between kW and kWh are explained below in the comparison chart. The word demand shows the kW, and the word …
When an electrical current passes through the body, the nervous system experience an electric shock. The intensity of the shock depends mainly on the strength of the current and the path taken by the current through the body and the duration of contact. In extreme cases the shock causes the failure of the normal action …
Definition: The configuration in which the base of the transistor is common between emitter and collector circuit is called a common base configuration. The common base circuit arrangement for NPN and PNP transistor is shown in the figure below. In common base-emitter connection, the input is connected between emitter and base while the output is …
The common emitter NPN amplifier circuit is shown in the figure below. The source VBB is applied to the input circuit in addition to the signal. The VBB battery provides the forward bias voltage to the emitter-base junction of the transistor. The magnitude of the forward bias voltage should be such that it should keep …
One of the major difference between the Avalanche and the Zener breakdown is that the Avalanche breakdown occurs because of the collision of the electrons, whereas the Zener breakdown occurs because of the high electric field. The other differences between them are explained below in the comparison chart. The charge carrier of the PN-junction diode …
One of the major difference between the forward and the reverse biasing is that in forward biasing the positive terminal of the battery is connected to the p-type semiconductor material and the negative terminal is connected to the n-type semiconductor material. Whereas in reverse bias the n-type material is connected to the positive terminal of …
The transistor raises the strength of a weak signal and hence acts an amplifier. The transistor amplifier circuit is shown in the figure below. The transistor has three terminals namely emitter, base and collector. The emitter and base of the transistor are connected in forward biased and the collector base region is in reverse bias. …
