Medium General Science GENERAL SCIENCE FPSC Question An iron nail/steel rod can be magnetize by? A By passing an electric current around it B By heating it on a high flame C By hammering D By keeping it with an iron rod Submit Answer Try Again Explanation Explanation An iron nail/steel rod can be magnetized by passing an electric current around it , a process known as electromagnetic induction. This is the principle behind electromagnets. Show Explanation Previous MCQ All MCQs Next MCQ More MCQs in General Science Medium A magnet that is hard to magnetize is called a(n)? A magnet that is hard to magnetize is called a(n)? Medium Birds exhibits which of the following traits? Birds exhibits which of the following traits? Medium Which of the following is/are the characteristics of reptiles? Which of the following is/are the characteristics of reptiles? Medium Which of the following is/are characteristics of amphibians? Which of the following is/are characteristics of amphibians?