एक बेलनाकार धातु के तार की लंबाई उसके आयतन में बिना किसी परिवर्तन के 30% बढ़ा दी जाती है। इसके विद्युत प्रतिरोध में कितने प्रतिशत की वृद्धि होगी?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?