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Physics Teacher

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  1. Asked: October 30, 2020In: Class 10

    Name some sources of direct current.

    Physics Teacher
    Added an answer on December 6, 2020 at 10:39 am

    Some sources of direct current are a cell, a battery and a D.C. generator. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-13/

    Some sources of direct current are a cell, a battery and a D.C. generator.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-13/

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  2. Asked: October 30, 2020In: Class 10

    State the principle of an electric generator.

    Physics Teacher
    Added an answer on December 6, 2020 at 10:38 am

    An electric generator is based on the principle of electromagnetic induction. When a rectangular coil is rotated in a uniform magnetic field, an induced voltage is generated between the ends of the coil. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/sciencRead more

    An electric generator is based on the principle of electromagnetic induction. When a rectangular coil is rotated in a uniform magnetic field, an induced voltage is generated between the ends of the coil.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-13/

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  3. Asked: October 30, 2020In: Class 10

    Explain different ways to induce current in a coil.

    Best Answer
    Physics Teacher
    Added an answer on December 6, 2020 at 10:37 am

    Different ways to induce current in a coil are as given below: • If a magnetic field is changed around a coil then an induced current is set up in the coil. It can be done by taking a bar magnet and bringing it closer to the coil or taking it away from the coil. • If a coil is moved in a magnetic fiRead more

    Different ways to induce current in a coil are as given below:
    • If a magnetic field is changed around a coil then an induced current is set up in the coil. It can be done by taking a bar magnet and bringing it closer to the coil or taking it away from the coil.
    • If a coil is moved in a magnetic field, then again an induced current is set up in the coil.
    • If a coil is rotated in a uniform magnetic field, it may also produce an induced current in the coil.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-13/

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  4. Asked: October 30, 2020In: Class 10

    What is the role of the split ring in an electric motor?

    Physics Teacher
    Added an answer on December 6, 2020 at 10:36 am

    The split ring in the electric motor acts as a commutator. The commutator reverses the direction of current flowing through the coil after each half rotation of the coil. Due to this reversal of the current, the coil continues to rotate in the same direction. For more answers visit to website: httpsRead more

    The split ring in the electric motor acts as a commutator. The commutator reverses the direction of current flowing through the coil after each half rotation of the coil. Due to this reversal of the current, the coil continues to rotate in the same direction.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-13/

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  5. Asked: October 30, 2020In: Class 10

    What is the principle of an electric motor?

    Best Answer
    Physics Teacher
    Added an answer on December 6, 2020 at 10:35 am

    The working principle of an electric motor is based on the magnetic effect of current. A current-carrying loop experiences a force and rotates when placed in a magnetic field. The direction of rotation of the loop is given by the Fleming’s left-hand rule. For more answers visit to website: https://wRead more

    The working principle of an electric motor is based on the magnetic effect of current. A current-carrying loop experiences a force and rotates when placed in a magnetic field. The direction of rotation of the loop is given by the Fleming’s left-hand rule.

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-13/

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