Q4 of 13 Page 35

Express the power of a 100-watt bulb in CGS unit

Note: Magnitude of the physical quantity remains unchanged whatever may be the system of units.

Let,


be the signs of SI unit of the mass, length and time. Also let be the signs of CGS unit of mass, lengtha and time.


Now,



So,



Where = 100 Watt


= ? erg s-1


Now,






Hence, power in the CGS unit is.


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