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प्रश्न
State four properties of magnetic field lines.
उत्तर
Properties of magnetic field lines:
- They are closed and continuous curves.
- They are directed from the North Pole towards the South Pole outside the magnet.
- The tangent at any point on a field line gives the direction of magnetic field at that point.
- Two magnetic lines never intersect each other.
APPEARS IN
संबंधित प्रश्न
You are given the magnetic field pattern of a magnet. How will you find out from it where the magnetic field is the strongest?
Explain why, two magnetic field lines of not intersect each other.
A strong bar magnet is placed vertically above a horizontal wooden board. The magnetic lines of force will be:
(a) only in horizontal plane around the magnet
(b) only in vertical plane around the magnet
(c) in horizontal as well as in vertical planes around the magnet
(d) in all the planes around the magnet
Copy the figure below which shows a plotting compass and a magnet. Label the N pole of the magnet and draw field line on which the compass lines
Explain the following :
Several soft iron pins can cling, one below the other, from the pole of a magnet.
A charge of 5000 C flows through an electric circuit in 2 hours and 30 minutes. Calculate the magnitude of current in a circuit.
A dry cell can supply a charge of 800 C. If continuous current of 8.0 mA is drawn, calculate the time in which cells will discharge completely.
Define the Isogonic line.
State the inference drawn about the direction of the magnetic field lines on the basis of the following diagrams.
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| Figure 'a' | Figure 'b' |
