निम्नलिखित में से कौन सा बल एक आवेशित वस्तु द्वारा दूसरी आवेशित अथवा अनावेशित वस्तु पर लगाया जाता है?

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?