Home
Class 10
PHYSICS
What would happen to the direction of ro...

What would happen to the direction of rotation of a motor, if
i] the current was reversed ?
ii] both current and magnetic field were reversed simultaneously ?

Text Solution

Verified by Experts

i] Direction of rotation would be reversed.
ii] Direction of rotation would remain unchanged.
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    ZEN PUBLICATION|Exercise Additional question section (Short answer [SA] type 2 questions)|66 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    ZEN PUBLICATION|Exercise Additional question section (Long answer [LA] type questions)|30 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    ZEN PUBLICATION|Exercise Additional question section (Very-short-answer [vsa] type questions)|64 Videos

  • LIGHT - REFLECTION AND REFRACTION

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (LONG ANSWER [LA] QUESTIONS)|30 Videos

  • SOURCES OF ENERGY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (HIGHER-ORDER THINKING SKILLS [HOTS] )|14 Videos

Similar Questions

Explore conceptually related problems

What will happen when the direction of motion of coil (or magnet) is reversed ?

What happens to the force acting on a current-carrying conductor placed in a magnetic field when : a] current in conductor increases ? b] length of the conductor increases ? c] direction of the current and magnetic field are reversed ? d] direction of the current is reversed without changing the direction of magnetic field ?

What will be the induced current in a circuit placed in a constant magnetic field ?

The direction of force acting on a current carrying conductor at right angles to a magnetic field is given by

Name and state the rule to determine the direction of a force experienced by a straight current-carrying conductor placed in a magnetic field which is perpendicular to it.

A horizontal power line carries a current from east to west direction. What is the direction of the magnetic field due to the current in the power line at a point above and at a point below the power line ?

ZEN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT -Additional question section (Short answer [SA] type 1 questions)
  1. A magnetic compass shows a deflection when placed near a current-carry...

    Text Solution

    |

  2. A horizontal power line carries a current from east to west direction....

    Text Solution

    |

  3. What would happen to the direction of rotation of a motor, if i] t...

    Text Solution

    |

  4. How can the speed of rotation of the armature coil of an electric moto...

    Text Solution

    |

  5. Draw the diagram of a simple electric motor. Label the following parts...

    Text Solution

    |

  6. In what way can the magnitude of an induced current be increased ?

    Text Solution

    |

  7. State the factors on which the induced emf in a coil rotating in a uni...

    Text Solution

    |

  8. If the speed of rotation of the armature of a generator is doubled, ho...

    Text Solution

    |

  9. For the current-carrying solenoid shown, draw the magnetic field lines...

    Text Solution

    |

  10. What kind of energy transformation takes place in an electric motor ? ...

    Text Solution

    |

  11. What is the role of fuse used in series with any electrical appliance ...

    Text Solution

    |

  12. Whay is the earth pin longer and thicker than live and neutral pins ...

    Text Solution

    |

  13. Name the three types of wires used in domestic circuits and mention t...

    Text Solution

    |

  14. Give two uses of a magnetic compass.

    Text Solution

    |

  15. A freely suspended magnet always points along north-south direction. W...

    Text Solution

    |

  16. What are magnetic field lines ? How is the direction of a magnetic fie...

    Text Solution

    |

  17. What is the direction of magnetic field lines inside a bar magnet and ...

    Text Solution

    |

  18. What does the degree of closeness of the field lines represent ?

    Text Solution

    |

  19. Name the SI unit of magnetic field and define it.

    Text Solution

    |

  20. Identify the poles of the magnet in the given Figures.

    Text Solution

    |