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प्रश्न
What are magnetic field lines?
उत्तर
संबंधित प्रश्न
What is a magnetic field? How can the direction of magnetic field lines at a place be determined?
A current flows downwards in a wire that passes vertically through a table top. Will the magnetic field lines around it go clockwise or anticlockwise when viewed from above the table?
What is an artificial magnet? State two reasons why do we need artificial magnets .
Explain the following :
Several soft iron pins can cling, one below the other, from the pole of a magnet.
Explain why iron filings which are sprinkled on a sheet of cardboard placed over a bar magnet take up a definite pattern when cardboard is slightly tapped.
Draw magnetic field lines produced around a current-carrying straight conductor passing through cardboard. Name, state and apply the rule to mark the direction of these field lines.
The intensity of a magnetic field is indicated by the lines of ______.
Select the correct option:
Nickel is a:
Define the agonic line.
Define the isoclinic line.
Draw diagram showing the arrangement of the lines of force for a piece of soft iron laid in line with the magnetic field.
State any two properties of a magnet.
The relative strength of the magnetic field at a point in the space surrounding the magnet is shown by the ____________.
A charge moving in a magnetic field, in a direction other than the direction of the magnetic field, experiences a force. It is called the ______ force.
When the conductor is perpendicular to the magnetic field, the force will be the ______, When it is parallel to the magnetic field, the force will be ______.
Define magnetic field lines of force.
A closely wounded circular coil of radius 5 cm produces a magnetic field of 37.68 × 10-4 T at its center. The current through the coil is ______ A. [Given, number of turns in the coil is 100 and π = 3.14)
