SET 5: Domestic Electric Circuits and Safety Devices
Introduction: This set covers domestic wiring, parallel connections, fuses, earthing, short circuits, and overloading. Questions also include the magnetic effects used in everyday appliances and safety measures.
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📘 SCIENCE
PHYSICS | Magnetic Effects of Electric Current-E
📝 Questions: 50
⏱️ Timer: 20 min
Q1. In domestic wiring, appliances are connected in:
Q2. A current-carrying conductor produces a:
Q3. Fuse protects appliances by:
Q4. The earth wire is connected to:
Q5. In an AC generator, the induced current changes direction once in each:
Q6. The magnetic field near a long straight wire consists of:
Q7. Fleming's left-hand rule gives the direction of:
Q8. Bulbs and fans are usually connected to a circuit of rating:
Q9. The green insulated wire in domestic wiring is the:
Q10. Short-circuiting causes current to:
Q11. Magnetic field lines around a straight current-carrying wire are:
Q12. Electric motor works on the principle of:
Q13. Magnetic field exists in the region:
Q14. Short-circuiting occurs when live wire and neutral wire:
Q15. Each appliance in a house has a separate switch so that it can be:
Q16. The main purpose of the earth wire is to:
Q17. A compass needle is actually a small:
Q18. Fuse is a safety device used to protect circuits from:
Q19. A generator converts:
Q20. Overloading can also be caused by:
Q21. High power appliances like geysers are connected to a circuit of rating:
Q22. Earthing ensures that leakage current keeps the appliance body at the potential of:
Q23. Overloading may occur due to accidental hike in:
Q24. The schematic diagram of a domestic circuit shows appliances connected:
Q25. A current-carrying conductor placed in a magnetic field experiences a:
Q26. The potential difference between live and neutral wire in India is:
Q27. AC changes direction after every:
Q28. Electric power supplied to homes is:
Q29. Domestic electric supply reaches houses through:
Q30. Electric power supplied to homes is called:
Q31. An electromagnet consists of:
Q32. The direction of induced current is given by:
Q33. The wire with red insulation in domestic circuits is called:
Q34. Appliances like electric press and refrigerator have metallic bodies mainly for:
Q35. Magnetic field lines are closer together where the magnetic field is:
Q36. The device used for producing electric current is a:
Q37. The direction of magnetic field around a straight wire is given by the:
Q38. The frequency of AC supply in India is:
Q39. A solenoid carrying current behaves like a:
Q40. Electricity meter in a house is connected through a:
Q41. Overloading in a circuit occurs when:
Q42. During short-circuiting, the current in the circuit:
Q43. Magnetic field lines are used to represent:
Q44. The function of a fuse in domestic circuits is to:
Q45. Parallel connection ensures that each appliance gets:
Q46. The wire with black insulation in domestic circuits is called:
Q47. Metallic bodies of appliances are connected to the earth wire to:
Q48. An electric motor converts:
Q49. Electromagnetic induction refers to production of current due to:
Q50. The fuse wire melts due to:
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