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What is an indicator?
An indicator is a substance that undergoes a change when the endpoint of a titration is reached E.g.: acid indicators are used to single the end of acid-base titration. Indicators…
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Application of astable multivibrator
The astable multivibrator is used as the wave generator. It is used as voltage-frequency converter. It is used in pulse synchronization. Since it produces square waves, it is a source…
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Explain the frequency stability of an oscillator
Manos table multivibrator has one stable state and one quasi-state. It is also known as one-shot multivibrator or univibrator. It remains in its stable state an input pulse triggers it…
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Differentiate between single-walled carbon nano-tube and multi-walled carbon nano-tube
The difference between the single-walled carbon nanotube and multi-walled carbon nano-tube are as follows- Single-walled carbon nano-tube Multi-walled carbon nano-tube SWNT is made up by rolling a graphene sheet into…
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Comparison of A.C distribution with D.C distribution
A.C distribution D.C. distribution 3 phase A.C distribution system requires 4 wires. D.C distribution system requires only one wire with the ground as a return path. The voltage at the…
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Frequency stability of an oscillator
The frequency stability of an oscillator can be defined as a measure of its ability to maintain a constant frequency over a long time interval. However, it has been observed…
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What is positive feedback
Positive feedback: If the feedback single (i.e. voltage or current) is applied in such a way that is in phase with the input and thus increase it, then it is…
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Block diagram of instrumentation system
It is branch of engineering which deals with various types of instrument to record, monitor, indicate and control various physical parameters such as pressure, temperature, etc. The block diagram shown…
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Types of communication channels
There are two types of communication channels Point to point channel broadcast channel 1. Point to point channel Wire links, microwave links and optical fibers wire line operated by guided…
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Basic block diagram of communication system
Following is the basic block diagram of communication system Information source The various massage is the form of words, group of word, code, symbol, sound signal etc. However, out of…