एक 3-फेज इंडक्शन मोटर की आपूर्ति आवृत्ति (supply frequency) 50 Hz है। जब रोटर स्थिर होता है, तो रोटर धारा की आवृत्ति कितनी होती है?

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?