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Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Access free engineering resources from IEE Business—covering power design, circuit layout, equipment selection, and troubleshooting. Expert-developed guides help engineers, procurement, and project teams make better decisions. Stay ahead on smart grids, renewables, efficiency, and AI tools. Improve reliability, reduce downtime, and enhance outcomes with real-world solutions. Explore our knowledge hub today.
Maximum Power Transfer Theorem
In electrical engineering, the Maximum Power Transfer Theorem states that in a passive, two-port, linear network, the power transmitted to the load is maximised when the load resistance (RL)is equal to the Thevenin equivalent resistance (RTH) of the network. The Thevenin equivalent resistance of a network is the resistance seen looking into the terminals of the network with all sources of voltage removed and the terminals shorted together.The Maximum Power Transfer Theorem is based on the idea t
03/09/2024
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 Star-Delta transformation Theorem
The Star-Delta transformation is a technique in electrical engineering that allows the impedance of a three-phase electrical circuit to be transformed from a “delta” configuration to a “star” (also known as “Y”) configuration, or vice versa. The delta configuration is a circuit in which the three phases are connected in a loop, with each phase connected to the other two phases. The star configuration is a circuit in which the three phases are connected to a common point, or “neutral” point.The S
03/09/2024
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Delta-Star transformation Theorem
The Delta-Star transformation is a technique in electrical engineering that allows the impedance of a three-phase electrical circuit to be transformed from a “delta” configuration to a “star” (also known as “Y”) configuration, or vice versa. The delta configuration is a circuit in which the three phases are connected in a loop, with each phase connected to the other two phases. The star configuration is a circuit in which the three phases are connected to a common point, or “neutral” point.The D
03/09/2024
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Fleming’s Right-Hand Rule
Fleming’s Right-Hand Rule is a principle in electromagnetism that describes the relationship between the direction of the current in a conductor, the direction of the magnetic field around the conductor, and the direction of the force on the conductor.Fleming’s Right-Hand Rule states that if the thumb, index finger, and middle finger of the right hand are pointed in the direction of the current, the direction of the magnetic field, and the direction of the force on the conductor, respectively, t
03/09/2024
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Fleming’s Left-Hand Rule
Fleming’s Left-Hand Rule is a principle in electromagnetism that describes the relationship between the direction of the current in a conductor, the direction of the magnetic field around the conductor, and the direction of the force on the conductor. It is similar to Fleming’s Right-Hand Rule, but it is used to predict the direction of the force on a conductor moving through a magnetic field, rather than a stationary conductor.To use Fleming’s Left-Hand Rule, follow these steps:Hold your left h
03/09/2024
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Moore’s Law
Moore’s Law is a prediction made by Gordon Moore, co-founder of the technology company Intel, in 1965 that the number of transistors on a microchip would double approximately every two years. This prediction has proven to be remarkably accurate, and has served as a driving force in the rapid development of the technology industry for more than 50 years. Moore’s Law is based on the idea that the number of transistors that can be placed on a microchip will increase exponentially over time, as the
03/08/2024
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The Seebeck Effect
The Seebeck effect is a phenomenon in which a voltage is generated between the ends of a conductor when the temperature at one end is different from the temperature at the other end. It is named after the German physicist Thomas Johann Seebeck, who first described it in the early 19th century.Define The Seebeck effect?The Seebeck effect is based on the fact that the movement of charge carriers, such as electrons, in a conductor generates heat. When a temperature difference is applied across a co
03/08/2024
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Mechanical Equivalent of Heat
The mechanical equivalent of heat is the amount of mechanical work required to produce a given amount of heat. It is a fundamental principle in thermodynamics that relates the two physical quantities of heat and work.The concept of the mechanical equivalent of heat was first proposed by the French scientist Sadi Carnot in the early 19th century, and was later refined by James Joule and other scientists. It states that a given amount of heat can be converted into an equivalent amount of mechanica
03/08/2024
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DC Circuit Rule
DC Circuit Rule is a principle in electrical engineering that describes the relationship between the current, voltage, and resistance in a direct current (DC) circuit. It states that the current through a conductor between two points is directly proportional to the voltage across the two points, and inversely proportional to the resistance between them. This relationship is described by Ohm’s Law, which can be expressed mathematically as:I = V/Rwhere:I – Current through the conductor (A)V – Volt
03/08/2024
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Voltage Divider Rule
The voltage divider rule is a principle in electrical engineering that describes the behavior of a voltage divider circuit, which is a circuit that divides the voltage across a load into two or more parts. The voltage divider rule states that the voltage across each resistor in the circuit is proportional to the resistance of the resistor and the total resistance of the circuit.Voltage Divider Rule Mathematical Expression:The voltage divider rule can be expressed mathematically as:V1= (R1/ (R1+
03/08/2024
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