Home
Class 10
PHYSICS
What is the difference between an electr...

What is the difference between an electromagnet and a permanent magnet?

Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    PRADEEP|Exercise Multiple Choice Questions|12 Videos
  • ELECTRICITY

    PRADEEP|Exercise (Mock Test)Sec - B|6 Videos
  • REFLECTION AND REFRACTION

    PRADEEP|Exercise NCERT EXEMPLAR PROBLEMS|19 Videos
PRADEEP-MAGNETIC EFFECTS OF ELECTRIC CURRENT-Mock Test
  1. What is the advantage of the third wire of each connection in domestic...

    Text Solution

    |

  2. On what factors does the force experienced by a current-carrying condu...

    Text Solution

    |

  3. State two ways by which the strength of an electromagnet can be increa...

    Text Solution

    |

  4. What is the difference between an electromagnet and a permanent magnet...

    Text Solution

    |

  5. What are the functions of: (i) kWh meter (ii) distribution board and (...

    Text Solution

    |

  6. How can a soft iron piece be transformed into an electromagnet? Draw a...

    Text Solution

    |

  7. Why does a compass needle get deflected when brought near a bar magnet...

    Text Solution

    |

  8. The flow of a current in a circular loop of a wire creates a magnetic ...

    Text Solution

    |

  9. What are magnetic field lines? How is the direction of magnetic field ...

    Text Solution

    |

  10. Why is series arrangement not used for domestic circuits?

    Text Solution

    |

  11. State the characteristics of magnetic force.

    Text Solution

    |

  12. Though currently there is little scientific evidence to suggest that m...

    Text Solution

    |

  13. What is the difference between the terms overloading and short-circuit...

    Text Solution

    |

  14. The use of magnetic therapy for pain relief has become increasingly po...

    Text Solution

    |

  15. A student performs an experiment to study the magnetic effect of curre...

    Text Solution

    |

  16. (i) What is the meaning of the term 'frequency' of an alternating curr...

    Text Solution

    |

  17. Explain with a labelled diagram, the principle, construction and worki...

    Text Solution

    |

  18. Write the characteristics of magnetic field lines. Draw the magnetic f...

    Text Solution

    |

  19. You are given following current-time graph from two different sources,...

    Text Solution

    |

  20. Draw an appropriate schematic diagram showing common domestic circuits...

    Text Solution

    |