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i want a good book about GSM ... a book that would contain information about the GSM technology being used by mobile operators... and important concepts such as Frequency Hopping, Handovers, Burst, etc
Resistor Colour Coding
Resistors generally have a total of 4 colour bands....3 colour bands which define the value of the resistor and the 4th one that defines the percentage variation.
However, some resistors have five colour bands. These resistors are generally used in military devices...
difference b/w electric and electronic devices
well the difference b/w electrical and electronics is the operating voltages.
Electrical devices operate on high voltages (eg 220V) whereas Electronic devices operate at smaller voltages.
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