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Option 1 : SI Units

CONCEPT:

  • Physical quantity is a property of a material. It can be expressed in number by measurement.
  • A physical quantity is expressed by a numerical value and a unit. For example, the physical quantity length can be expressed as 4 metre, where 4 is the numerical value and metre is the unit.
  • The SI units are the standard units of measurement defined by the International System of Units (SI).

EXPLANATION:

Following are the SI units of the physical quantity:

Physical Quantity SI Units
Power watt
Inductance henry
Capacitance farad
Force newton
Mass kilogram
Resistance ohm
Energy, work joule
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