Reverse Bias PN Junction: When an external bias voltage is applied to a pn-junction, positive to the n-side and negative to the pride, electrons from the n-side are attracted to the positive terminal, and holes…
What is Electroplating in Electrolysis and its Working Principle Electroplating is an art of depositing a superior or a more noble metal on an inferior or a base metal by means of electrolysis of an…
Cycloconverter Feeding Three Phase Induction Motor Drive: Variable frequency supply to an induction motor may be obtained by using a cycloconverter. As has already been discussed, a cycloconverter is a single stage frequency conversion device…
Instantaneous Overcurrent Relays: If the relay operates instantly without any intentional time delay, this characteristic can generally be satisfied by a relay of the non-polarized attracted armature type. This relay has a special advantage of…
Unbalanced Rotor Impedance Operation: Earlier Unbalanced Rotor Impedance Operation were employed for starting and speed control. They are not in use any more. However, a loose contact in the rotor circuit can cause unbalance in…
Explain Bohr's Atomic Model: Bohr's Atomic Model - Neils Bohr, a Danish physicist, put forward his model of atom in 1913. He retained Rutherford's model of a very small positively charged nucleus at the centre.…
What is Machine Language in Microprocessor and Microcontroller?: Programmers write instructions in various programming languages. Some programs are directly understandÂable by the computer and other programs require intermediate translation steps. Nowadays hundreds of comÂputer languages…
Steady State Stability in Power System: The steady state stability limit of a particular circuit of a power system is defined as the maximum power that can be transmitted to the receiving end without loss…
Television Systems and Standards: It is clear that a large amount of information must be broadcast by a television transmitter and that there are a variety of ways in which this can be done. Accordingly,…
Product Demodulator: The Product Demodulator (or detector), as shown in Figure 6-44, is virtually a mixer with audio output. It is popular for SSB, but is equally capable of demodulating all other forms of AM.…
