किस प्रकार के विद्युत यंत्र में एक चलायमान प्रणाली (moving system) होती है जो खपत की गई शक्ति के आनुपातिक गति से लगातार घूमती है, जिससे एक अवधि में उपयोग की गई कुल ऊर्जा को रिकॉर्ड किया जाता 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?