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प्रश्न
Fill in the following blank with suitable words:
Magnetic field lines leave the .......... pole of a bar magnet and enter at its .......... pole.
उत्तर
Magnetic field lines leave the north pole of a bar magnet and enter at its south pole
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संबंधित प्रश्न
Explain the mechanism of attraction of iron nails by a magnet when brought near them.
Explain the following :
Several soft iron pins can cling, one below the other, from the pole of a magnet.
Complete the following sentence :
If the field lines in a magnetic field are parallel and equidistant, the magnetic field is __________ .
The intensity of a magnetic field is indicated by the lines of ______.
Complete the following diagram of magnets to show the lines of force.
Write the properties of magnetic lines of force.
Magnetic field lines determine ______.
The magnetic field lines are stronger near the ______ and it diminishes as you go away from it.
A wire 10 cm long carrying a current of 1.5 A is held in a uniform magneÑic field in which B = 10-3 T. Calculate the force on the wire if it is held perpendicular to the lines of the magnetic field.
A student fixes a white sheet of paper on a drawing board. He places a bar magnet in the centre and sprinkles some iron filings uniformly around the bar magnet. Then he taps gently and observes that iron filings arrange themselves in a certain pattern.
- Why do iron filings arrange themselves in a particular pattern?
- Which physical quantity is indicated by the pattern of field lines around the bar magnet?
- State any two properties of magnetic field lines.
