Home
Class 7
PHYSICS
Answer the following questions: What is...

Answer the following questions:
What is wave?

Text Solution

Verified by Experts

The correct Answer is:
A magnet is prepared by passing an electric current through a copper wire wound around a piece of soft iron. The magnetism is produced in a piece of iron till the current flows through the copper wire. The magnet produced in this way, is called an electromagnet.
Promotional Banner

Topper's Solved these Questions

  • MOTION, FORCE AND WORK

    NAVNEET PUBLICATION|Exercise QUESTION BANK|47 Videos

  • PROPERTIES OF NATURAL RESOURCES

    NAVNEET PUBLICATION|Exercise QUESTION BANK|56 Videos

Similar Questions

Explore conceptually related problems

Answer the following questions: What is average speed?

Answer the following questions: What is velocity ?

Answer the following questions: What is reverberation?

Answer the following questions: What is lateral inversion?

Answer the following questions: What is a real image?

Answer the following questions: What is a virtual image?

Answer the following questions : What is an electric generator?

Answer the following questions : What is a lens formula ? state it.

Answer the following questions: What is accelerated motion?

Answer the following questions : What is retina ?

NAVNEET PUBLICATION-PROPERTIES OF A MAGNETIC FIELD-QUESTION BANK
  1. Answer the following questions: Give detailed information about how t...

    Text Solution

    |

  2. Answer the following questions: Write any four properties of magnetic...

    Text Solution

    |

  3. Answer the following questions : State any two uses of an AC generat...

    Text Solution

    |

  4. Answer the following questions: Which pole of the magnetic sphere wou...

    Text Solution

    |

  5. Answer the following questions: What is wave?

    Text Solution

    |

  6. Answer the following questions: How can an electromagnet be made?

    Text Solution

    |

  7. Use your brain power! Which soil is suitable for cultivation? why?

    Text Solution

    |

  8. Answer the following questions orally: Is magnetic force a vector or ...

    Text Solution

    |

  9. Use your brain power! What is meant by magnetic force?

    Text Solution

    |

  10. Use your brain power! How does a magnetic force act without direct co...

    Text Solution

    |

  11. Use your brain power! What is the difference between gravitational fo...

    Text Solution

    |

  12. Use your brain power! Why is repulsion the real test for identifying ...

    Text Solution

    |

  13. Use your brain power! How will you find a magnet from among the vario...

    Text Solution

    |

  14. Answer the following Question: Make a list of electric appliances use...

    Text Solution

    |

  15. Answer the following Question: Where and how are magnets used in our ...

    Text Solution

    |

  16. Answer the following questions orally: Magnetism generated by which m...

    Text Solution

    |

  17. Answer the following questions orally: Who had inferred for the first ...

    Text Solution

    |

  18. Answer the following questions orally: Which instrument is used to de...

    Text Solution

    |

  19. Answer the following questions orally: What are the factors on which t...

    Text Solution

    |

  20. Answer the following questions orally: Is magnetic force a vector or ...

    Text Solution

    |