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प्रश्न
Where do the manufactures use a magnetic strip in the refrigerator? Why is this magnetic strip used?
उत्तर
Magnetic strips are used in refrigerator doors.
In the absence of a magnet strip, the door will not close completely. This will allow warm air from outside to enter into the refrigerator. Further, the cool air from the refrigerator will also escape.
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संबंधित प्रश्न
The three diagrams in the following figure show the lines of force (field lines) between the poles of two magnets. Identify the poles A, B, C, D, E and F.
Define the term magnetic field of a magnet. How will you recognize it experimentally?
Fill in the blank.
Like poles ..................... each other.
The unit of magnetic flux density is ______.
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Choose the incorrect statement from the following regarding magnetic lines of field
A magnetic field exerts no force on ______.
The magnetic field inside a ______ is uniform.
A magnetic field is a ______ quantity.
Draw magnetic field lines produced around a straight current carrying conductor passing through a cardboard. How will the strength of the magnetic field change when the point where magnetic field is to be determined is moved away from the conductor?
