Dia Para Ferro Magnetic Materials Diamagnetic Materials These materials are feebly repelled by a magnet. When placed in a magnetizing field, they are feebly magnetized in a direction opposite to that of the field. Thus, the susceptibility of diamagnetic material is small and negative. Further, the flux density in a diamagnetic material placed […]
The logic gates are the building blocks of digital circuits. A logic gate has one output, but one or more inputs. The output signal appears only for certain combinations of input signals. There are three basic logic gates: Each logic gate is indicated by a logical symbol and its function is described either by a
A nickel-cadmium cell has two plates. The active material of the positive plate (anode) is Ni(OH)4 and the negative plate (cathode) is of cadmium (Cd) when fully charged. The electrolyte is a solution of potassium hydroxide (KOH) with a small addition of lithium hydrate which increases the capacity and life of the battery. The specific
Hi friends, In this article, I am going to discuss the nickel iron battery construction, working principle, and compare its features with a lead-acid battery. So keep reading. The Nickel-Iron alkaline cell was developed by an American scientist Thomson A. Edison in 1909. Therefore it is also known as Edison-cell. Nickel Iron Battery Construction The nickel-iron battery
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Methods of Electrical Wiring Testing All new completed electrical installation should be tested before connection to the supply, to ensure that the installation is technically sound and free from any possible short circuits, etc. the main reasons, to test a new electrical installation or house wiring before it is switched on to the mains are
Hi friends, In this article, I am discussing the stepper motor working principle, its basics and applications. You will find it informative and interesting. So keep reading. As the name implies, a stepper motor, within its operation range, and capability, starts, stops, reverses and moves through a predetermined stepping angle under commands from an electronic logic
Hi friends, In this article, I am discussing the radar working principle, block diagram and applications. So keep reading. A radar which stands for “radio detection and ranging” is a method of detecting the presence and position of objects by reflected radio waves. The detected object is called target and the distance to the target is determined
Hi friends, In this article, I am providing you some basic information about the industrial applications of ultrasonic waves. So keep reading. The term ultrasonic is used in acoustics to denote the frequencies which are beyond the range of human hearing. Thus; ultrasonic waves are sound waves of frequencies above 20,000 c/s. By using modern methods of generation,
High resistivity materials are used for making resistance elements for heating devices, starters for electric motors, resistances used in precision measuring instruments, loading resistances and rheostats and filaments for incandescent lamps. High resistivity materials are used in all such applications where a large value of resistance is required. If low resistivity materials were used for such
Single Phasing of Induction Motor The single phasing of three phase induction motors forms the most common hazard to motor operation, because of the possibility of overheating and burning-out of the motor under this condition. By single-phasing is meant the opening of one wire (or leg) of a three-phase circuit whereupon the remaining leg at