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Which of the following is a defined quantity?(a) Pressure(b) Polarity(c) Money(d) LengthI got this question in quiz.Query is from The International System of Units, Voltage and Current, Power and Energy topic in section Circuit Variables and Elements of Electric Circuits

Answer» CORRECT answer is (d) Length

The best I can explain: The SI units are based on 7 defined quantities NAMELY length, mass, time, electric CURRENT, thermodynamic TEMPERATURE, amount of substance and also on the luminous intensity.


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