engineering recuitment UPSSSC Assistant Boring Technician 2022 Mock Test Physics Work Power and Energy Power
दक्षता = ________है।
1
\(\rm \frac{Power~output}{Power~input}\)
2
\(\rm \frac{Power~input}{Power~output}\)
3
शक्ति आउटपुट × शक्ति इनपुट
4
उपरोक्त सभी