engineering recuitment BSPHCL Technician (Electrician) 2024 Mock Test Electrician and Wireman Electrical Machines Alternators
3-फेज प्रत्यावर्तित्र की दक्षता \(\eta\)' किसके द्वारा दी गई है?
1
\(\eta = {{Output} \over Output + Losses}\)
2
\(\eta = {{Input} \over Iutput + Losses}\)
3
\(\eta = {{Output - Losses} \over Output}\)
4
\(\eta = {{Input} \over Output + Losses}\)