Question

Проволочная катушка присоединена к гальванометру внутрь нее вдвинут магнит катушку вращают относительно продольной оси что показывает гальванометр

Answer 1

При таком вращении не происходит изменения магнитного потока, следовательно гальванометр ничего не покажет.

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Answer 2

The Galvanometer and the Wire Coil

When a wire coil is connected to a galvanometer, and a magnet is inserted into the coil, the galvanometer will show a certain reading. The behavior of the galvanometer in this setup can be explained as follows:

Magnetic Field and Induced Current

When a magnet is inserted into the wire coil, it creates a changing magnetic field within the coil. This changing magnetic field induces an electric current in the wire coil, according to Faraday's law of electromagnetic induction. The induced current flows through the wire coil and can be detected by the galvanometer.

Galvanometer Reading

The galvanometer is a device used to measure small electric currents. It consists of a coil of wire suspended between the poles of a permanent magnet. When an electric current flows through the coil, it experiences a torque that causes it to rotate. The rotation of the coil is proportional to the strength of the current passing through it.

In the setup described, when the magnet is inserted into the wire coil and the coil is rotated around its longitudinal axis, the induced current in the coil causes the galvanometer to show a reading. The exact reading will depend on the strength and direction of the induced current.

Conclusion

In summary, when a wire coil is connected to a galvanometer and a magnet is inserted into the coil, rotating the coil around its longitudinal axis will induce a current in the coil. This induced current will cause the galvanometer to show a reading, which will depend on the strength and direction of the induced current.

Please note that the specific details of the galvanometer reading may vary depending on the design and calibration of the galvanometer used.