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प्रश्न
Give detailed information about how the merchants of olden times used a magnet while travelling.
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उत्तर
In the past, it was known that a piece of magnetite (stones having magnetic properties), when hung freely, points in the north-south direction. Thus, these stones were used by merchants of olden times to find direction while travelling through unknown regions. These stones are also called loadstones (leading stones).
संबंधित प्रश्न
Draw magnetic field lines around a bar magnet.
Which of the following is not attracted by a magnet:
List two methods of producing magnetic fields.
Define magnetic field.
The unit of magnetic flux density is ______.
By which instrument, the presence of a magnetic field be determined?
The ______ produces its own magnetic field, which shields the earth’s ozone layer from the ______ and is important in navigation.
The magnetic field lines due to a straight wire carrying current are parallel.
The force on a charged particle moving in a magnetic field is maximum when the angle between the direction of motion and field is 90°.
The field at the center of the long circular coil carrying current will be parallel straight lines.
