ऊर्जा का व्यवसायिक मात्रक: Difference between revisions

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[[Category:कार्य तथा ऊर्जा]]
[[Category:कार्य तथा ऊर्जा]]
[[Category:कक्षा-9]]

Revision as of 17:49, 21 September 2023

commercial unit of energy