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KNOW ABOUT BASIC ELECTRICAL AND ELECTRONIC DEVICES

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Nowadays, we are familiar with the, electricity and various electrical instruments. There are many things  e.g light, fan, TV, refrigerator,switch,fuse etc. in our house. We use this instruments. But we frequently listen some terms and devices name viz. voltage, current, AC Current, DC Current, resistor, transformer, capacitor, LED, inductor etc . which we don't use these directly. But, amazing fact is that, the instruments which we daily use, are made of these(resistor, capacitor etc.).  Let's discuss these. Here, I don't discuss these so deeply. What is Voltage? and  What is Current? Voltage( Potential difference) represents the force. And Current represents the flow of electrons in the circuit. We (who are the basic users or novice) need not know much about this. It is a image of mobile charger.See what is written as input and output The unit of voltage is volt ( v ) and current is ampere ( A ). 1mA=(1/1000) A You obviously heard the term...
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Which alcohol is used in Homeopathic Medicine

 Which alcohol is used in Homeopathic medicine ? In Homeopathic medicine Ethyl alcohol ( also known as Ethanol)  is used.    It is worth to mention that the alcohol used in Rubbing solution is different from the alcohol used in Homeopathic medicine.  In liquor Ethyl alcohol is used. But concentration is different. N.B: Generally in Rubbing solution ( the solution is used for external cleaning in medical set-up) Isopropyl alcohol is used.  How to test the purity of Water?
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West Bengal PSC Previous Year CHEMISTRY Questions with Answers (Part-2)

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