What is DC Voltmeter? Working, Circuit Diagram & Multirange
Figure 1: DC Voltmeter.
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Basic Electrical
What is Permanent Magnet Moving Coil (PMMC) Instrument? Working Principle, Diagram, Construction, Parts and Derivation
Figure 1: PMMC Instrument. Working Principle of PMMC Instrument When a current carrying conductor is placed in a magnetic field the force is produced on the conductor (coil). This force tends to move the coil in the space. Construction of PMMC Instrument Fig. 1 shows constructional details of PMMC instruments with different constructions of permanent
What is an Inductor? Definition, Meaning, Unit, Symbol, Types, Uses & Applications
An inductor is a coil or electromagnetic device that oppose any change in current. Inductors or coils, probably vary more in design than any other component. Basically, an inductor is a conducting wire wound on an insulator. Inductor is the name of a component. Its value is called as inductance.
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What is Strain Gauge? Working Principle, Diagram, Types, Derivation & Formula
Strain gauge is a resistive type transducer which converts change in mechanical displacement into a proportional change in resistance. It is the most commonly used method of displacement measurement.
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Force on a Current Carrying Conductor in Magnetic Field
Figure 1. Force acting on a Current Carrying Conductor placed in a Magnetic Field.
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What is an AC Voltmeter? Circuit Diagram, Working and Types
DC voltmeter like PMMC meter works on DC supply but this meter can work on AC supply as if it is a AC voltmeter. Figure 1. What is required is an additional device to be connected between AC supply and PMMC meter is a Rectifier unit. If single diode is used as a rectifying unit for
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What is an Optocoupler? Working, Block Diagram & Applications
An optocoupler is a solid state electronic device, which includes a light emitter, light path and a light detector enclosed in single package. It is also referred as optoisolator, since it provides electrical isolation between any two circuits.
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Single Phase Half Wave Controlled Rectifier
In Single Phase Half Wave Controlled Rectifiers the load power can be controlled in only one half cycle of the input ac supply. Figure 1: Single Phase Half Wave Controlled Rectifier.
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What is Summing Amplifier (Adder) Using Op-Amp? Circuit Diagram, Working, Derivation & Formula
It is possible to apply more than one input signal to an inverting amplifier. This circuit will then add all these input signals to produce their addition at the output. Such a circuit will then be called as an adder or a summing amplifier.