What is Wheatstone Bridge? Working Principle, Construction, Derivation, Diagram & Formula
Figure 1: Wheatstone Bridge.
What is Switched Reluctance Motor? Working Principle, Diagram, Construction & Applications
Figure 1: Switched Reluctance Motor. Switched Reluctance Motor can be operated on DC as well on AC supply. It uses no brushes nor any permanent magnet. It is a specialized type variable reluctance stepper motor. It has less number of poles.
What is Plugging Braking? Connection Diagram & Working
Plugging is the simplest type of braking which involves re-connection of motor to supply in such a way that motor develops torque in opposite direction to the movement of rotor system, speed will decrease till zero speed is reached where mechanical brakes are applied and then it will accelerate in opposite direction. This method is
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Reciprocity Theorem – Statement, Derivation, Examples & Formula
“In a linear, passive and bilateral single source network, the ratio of response to the excitation is constant even though the source is interchanged from the input terminals to the output terminals”.
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What is a Purely Resistive Circuit? Circuit Diagram, Phasor Diagram, Formula & Derivation
Purely Resistive Circuit having a pure resistor ‘R’ connected across an A.C voltage source as shown in figure (1). Let the voltage applied to circuit be v.
What is a Purely Inductive Circuit? Circuit Diagram, Phasor Diagram, Formula & Derivation
Purely Inductive Circuit having a pure inductance ‘L’ connected across an A.C voltage source as shown in figure (1). Let the voltage applied to circuit be ‘v’.
Maximum Power Transfer Theorem (DC & AC Circuits) – Statement, Derivation, Examples & Formula
“Maximum power transfer theorem states that the maximum power can be transferred from source (voltage source, current source) to the load only when the load resistance (RL) is equal to the internal resistance of the source (Ri)”. i.e, \[{{R}_{L}}={{R}_{i}}\]
What is Eddy Current Tachometer? Working Principle, Diagram, Construction & Applications
The eddy current tachometer converts the angular speed (ω) of the rotor into pointer deflection ϕ. The diagram of the eddy current type tachometer is shown in figure 1. The eddy current tachometer is also referred as drag-up tachometer.
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