Home
Class 7
PHYSICS
State two ways by which the strength of ...

State two ways by which the strength of magnetic field of an electromagnet can be increased.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY AND MAGNETISM

    ICSE|Exercise QUESTION (Write T for True and F for False. Correct the false statements)|4 Videos

  • ELECTRICITY AND MAGNETISM

    ICSE|Exercise QUESTION (Choose the correct option to fill in the blanks)|5 Videos

  • ELECTRICITY AND MAGNETISM

    ICSE|Exercise TEST YOURSELF (OBJECTIVE QUESTIONS :) (SELECT THE CORRECT ALTERNATIVE:)|8 Videos

  • ENERGY

    ICSE|Exercise EXERCISE (PICTURE STUDY)|3 Videos

Similar Questions

Explore conceptually related problems

Name two factors on which the strength of magnetic field of an electromagnet depends.

How is an electromagnet made ? Name two factors on which the strength of the magnetic field of an electromagnet depends.

The electric and magnetic field of an electromagnetic wave is

The strength of the earth's magnetic field is

The strength of magnetic field of an electromagnet is increased by inserting a core of ...............

A magnetic field can be produced by

The strength of magnetic field around an infinitely long current carrying conductor is

State two ways by which the frequency of a note given out by a stretched vibrating string can be increased.

State two evidences of the existence of earth's magnetic field.

The strength of magnetic field inside a long current-carrying straight solenoid is:

ICSE-ELECTRICITY AND MAGNETISM -TEST YOURSELF (OBJECTIVE QUESTIONS :) (SHORT / LONG ANSWER QUESTIONS:)
  1. You are given a U shaped soft iron piece, insulated copper wire and a ...

    Text Solution

    |

  2. Name two factors on which the strength of magnetic field of an electro...

    Text Solution

    |

  3. State two ways by which the strength of magnetic field of an electroma...

    Text Solution

    |

  4. State two common uses of electromagnets.

    Text Solution

    |

  5. Name a domestic device in which an electro magnet is used.

    Text Solution

    |

  6. Draw a neat and labelled diagram of an electric bell and describe its ...

    Text Solution

    |

  7. The incomplete diagram of an electric bell is given in Fig. Complete t...

    Text Solution

    |

  8. What is declination? Draw a diagram to show the angle between the decl...

    Text Solution

    |

  9. Define the term "current".

    Text Solution

    |

  10. Name four appliances which work using electricity.

    Text Solution

    |

  11. Name two sources of electricity.

    Text Solution

    |

  12. What is a battery ?

    Text Solution

    |

  13. What is an electric circuit ?

    Text Solution

    |

  14. Describe an experiment to show that electricity flows only if the circ...

    Text Solution

    |

  15. You are provided with a torch bulb, a cell and two plastic coated meta...

    Text Solution

    |

  16. In which of the following cases the bulb will glow: (i) Only one te...

    Text Solution

    |

  17. Distinguish between conductors and insulators of electricity. Give two...

    Text Solution

    |

  18. Select conductors and insulators from the following: Glass, silver, co...

    Text Solution

    |

  19. The following diagram (Fig) shows four circuits A, B, C and D. Each ci...

    Text Solution

    |

  20. The diagram given below (Fig.) shows a bulb connected with a cell havi...

    Text Solution

    |