एक लौह-चुंबकीय (ferromagnetic) पदार्थ में, इसके चुंबकीय रूप से संतृप्त होने के बाद, शुद्ध चुंबकीय प्रवाह घनत्व (magnetic flux density) को शून्य करने के लिए आवश्यक न्यूनतम विपरीत चुंबकन बल को क्या कहा जाता है?

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?

Who led the Non-Cooperation Movement in India?