Question

Вставить пропуски (помогите) Внесите магнит в катушку, вынесите магнит из катушки. Отклонялась ли стрелка гальванометра во время движения магнита? ___________ Во время его остановки? ____________ Во время вращения магнита внутри катушки? ________________________________ Появлялся ли электрический ток в катушке во время движения магнита? __________ Во время остановки? ________________ Во время вращения магнита внутри катушки?_________________ Менялось ли магнитное поле, пронизывающее катушку во время движения магнита? ______ во время его остановки? ______ Во время вращения магнита внутри катушки?__________________________ Меняется ли направление возникающего тока в катушке при вдвигании магнита в катушку и выдвигании из неё? ______________________ Явление возникновения электрического тока в замкнутой катушке при движении магнита относительно её называется _______________________________________________________________________ Ток, возникающий в катушке, называется ________________________________________________________________________

Answer 1

Ответ:

да

нет

да

да

нет

да

да

нет

да

да

электромагнитная индукция

ток самоиндукции

Объяснение:

Answer 2

Magnetic Field and Electromagnetic Induction

When a magnet is inserted into a coil, removed from the coil, or rotated inside the coil, several phenomena occur. Let's explore each of these scenarios in detail.

Inserting a Magnet into the Coil: - When a magnet is inserted into a coil, the galvanometer needle deflects. - This deflection occurs due to the change in magnetic flux through the coil, which induces an electromotive force (emf) according to Faraday's law of electromagnetic induction. - The induced emf causes a current to flow in the coil, resulting in the deflection of the galvanometer needle.

Removing the Magnet from the Coil: - Similar to inserting the magnet, removing the magnet from the coil also causes the galvanometer needle to deflect. - This deflection is due to the change in magnetic flux through the coil, which again induces an emf and causes a current to flow in the coil, resulting in the deflection of the galvanometer needle.

Rotating the Magnet Inside the Coil: - When the magnet is rotated inside the coil, the galvanometer needle deflects. - This deflection occurs due to the change in magnetic flux through the coil as the orientation of the magnetic field with respect to the coil changes, inducing an emf and causing a current to flow in the coil, resulting in the deflection of the galvanometer needle.

Changes in Magnetic Field and Current Direction: - The magnetic field passing through the coil changes during the movement of the magnet, inducing a current in the coil according to Lenz's law. - The direction of the induced current in the coil changes depending on whether the magnet is being inserted, removed, or rotated inside the coil.

Phenomenon and Terminology: - The phenomenon of the appearance of an electric current in a closed coil due to the movement of a magnet relative to it is known as electromagnetic induction. - The current induced in the coil is referred to as induced current.

In summary, the movement of a magnet relative to a coil induces an electric current in the coil, causing the galvanometer needle to deflect. This phenomenon is known as electromagnetic induction, and the induced current is termed the induced current.