Permanent magnet motors are similar to conventional DC motors except the use of permanent magnet to produce flux instead of field winding. The use of high energy permanent magnet in the motors which advances in the field for the purpose of simplicity and low initial cost has led to the formation of new class of […]
What is Permanent Magnet DC Motor (PMDC Motor)? Construction, Diagram & Applications Read More »
When the anode terminal of a diode is connected to the negative terminal of voltage source and cathode to the positive terminal then the diode is reverse biased as shown in Fig. 1 (a) and its symbolic representation in Fig. 1 (b).
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Figure 1. When anode is connected to the positive terminal of a battery/voltage source and cathode to the negative terminal, then the diode is said to be forward biased as shown in Fig. 1 (a) and its symbolic representation is shown in Fig. 1 (b).
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Figure 1: V-I Characteristics of a PN Junction Diode. VI Characteristics of pn junction diode, is a graph between the voltage applied across the terminals of a device and the current that flows through it. Fig. 1 shows the V-I characteristics of a typical PN junction diode with respect to breakdown voltage (VBR). The complete V-I
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Figure 1: Setup to understand the concept of Mutual Inductance.
What is Mutual Inductance? Definition, Unit & Formula Read More »
Figure 1: Setup to understand the concept of self inductance.
What is Self Inductance? Definition, Unit & Formula Read More »
Figure 1: Lead Acid Battery. The battery cells in which the chemical action taking place is reversible are known as the lead acid battery cells. So it is possible to recharge a lead acid battery cell if it is in the discharged state. In the charging process we have to pass a charging current through
The reciprocal of impedance \(\left( \frac{I}{Z} \right)\) is known as admittance and its symbol is Y. The unit in which it is measured is siemens (abbreviation, S) which is the admittance of the circuit whose impedance is one ohm. Figure 1: Admittance, conductance, susceptance.
What is Admittance? Meaning, Definition, Formula, Unit & Applications Read More »