MAGNETIC EFFECTS OF ELECTRIC CURRENT
SET 1: Fundamentals of Magnetism and Magnetic Effects
Introduction: This set covers the basic concepts of magnetism, magnetic poles, magnetic field lines, and the fundamental discoveries related to the magnetic effect of electric current. These questions form the foundation for understanding electromagnetism.
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📘 SCIENCE
PHYSICS | Magnetic Effects of Electric Current-A
📝 Questions: 50
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Q1. Which device works on the magnetic effect of electric current?
Q2. Magnetic field lines show the path along which a:
Q3. The north pole of a compass needle seeks:
Q4. What is created around a current-carrying straight wire?
Q5. Which pole of a compass is directed away from the north pole of a magnet?
Q6. The south pole of the compass needle points towards the:
Q7. Like poles of magnets:
Q8. Magnetic field lines never:
Q9. Deflection of a compass needle indicates the presence of:
Q10. The unit of magnetic field strength is named after:
Q11. Field lines are drawn by joining points marked by:
Q12. The magnetic field around a magnet can be detected using:
Q13. What happens to the compass needle when current flows through a nearby wire?
Q14. Which effect of electric current is discussed other than heating effect in the chapter?
Q15. The magnetic effect of current was discovered accidentally by:
Q16. Generators work on the principle of:
Q17. The magnetic field around a magnet is three-dimensional but shown on paper as:
Q18. A current-carrying wire behaves like a:
Q19. Iron filings arrange themselves around a bar magnet because:
Q20. The direction of magnetic field is indicated by:
Q21. The end of a compass needle pointing north is called:
Q22. The study of the relationship between electricity and magnetism is called:
Q23. Electric motors work on the principle of:
Q24. The deflection of a compass needle increases near the:
Q25. Oersted observed deflection of a compass needle near a:
Q26. Why does a compass needle get deflected near a bar magnet?
Q27. The magnetic effect of electric current shows that electricity and magnetism are:
Q28. Who discovered the magnetic effect of electric current?
Q29. Magnetic field is a quantity having:
Q30. Magnetic field lines are closer near the:
Q31. Iron filings experience force due to:
Q32. Compass needle deflection proves that current produces:
Q33. Which instrument is used to draw magnetic field lines?
Q34. In which year did Oersted discover electromagnetism?
Q35. The direction of magnetic field is taken as the direction in which the compass:
Q36. The magnetic field is strongest where field lines are:
Q37. Magnetic field lines show the:
Q38. A compass needle is actually a small:
Q39. Which scientist's work led to radio and television technologies?
Q40. Which device works on the electric effect of moving magnets?
Q41. Unlike poles of magnets:
Q42. The compass needle aligns itself along:
Q43. The region surrounding a magnet where its force can be detected is called:
Q44. Magnetic field lines around a bar magnet form:
Q45. Iron filings are used to study:
Q46. Magnetic field lines are represented by the alignment of:
Q47. The magnetic field inside a solenoid is:
Q48. The strength of the magnetic field at a point due to a current-carrying wire depends on:
Q49. The direction of magnetic field lines inside a magnet is from:
Q50. Electromagnetism is the study of:
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