صفحه محصول - پاورپوینت الکتروموتور

پاورپوینت الکتروموتور (pptx) 20 اسلاید

دسته بندی : پاورپوینت

نوع فایل : PowerPoint (.pptx) ( قابل ویرایش و آماده پرینت )

تعداد اسلاید: 20 اسلاید

قسمتی از متن PowerPoint (.pptx) :

Electric Motor Magnetic Force On A Current – Carrying Conductor The magnetic force (F) the conductor experiences is equal to the product of its length (L) within the field, the current I in the conductor, the external magnetic field B and the sine of the angle between the conductor and the magnetic field. In short F= BIL (sin) The force on a current-carrying conductor in a magnetic field: When a current-carrying conductor is placed in a magnetic field, there is an interaction between the magnetic field produced by the current and the permanent field, which leads to a force being experienced by the conductor: The magnitude of the force on the conductor depends on the magnitude of the current which it carries. The force is a maximum when the current flows perpendicular to the field (as shown in diagram A on the left below), and it is zero when it flows parallel to the field (as in diagram B, on the right): Fleming’s left-hand rule The directional relationship of I in the conductor, the external magnetic field and the force the conductor experiences I F B Motion of a current-carrying loop in a magnetic field N S L R I F F Rotation Commutator (rotates with coil) brushes Vertical position of the loop: N S Rotation Electric Motor An electromagnet is the basis of an electric motor An electric motor is all about magnets and magnetism: A motor uses magnets to create motion. Opposites attract and likes repel. Inside an electric motor, these attracting and repelling forces create rotational motion. A motor is consist of two magnets.