ECET Physics: Units and Dimensions

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1 Define physical quantity

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2 Fundamental and derived physical quantity with examples

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3 Define the Unit & characteristics of the unit

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4 Base, Supplementary & special units

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5 Define Multiples and sub-multiples of units

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6 Define SI units, their advantages & disadvantages

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7 Define dimension, dimensional formulas, and their uses

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8 Dimensional constants & dimensionless quantities

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9 Principal of homogeneity of dimensions

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10 Limitations of dimensional analysis