A magnetic field line shows the direction a compass needle would point
A magnetic field line shows the direction a compass needle would point.
Induction: Uses electrical energy to create a magnetic field and the magnetic field restores energy back to the line when it collapses.Electrical Theory, Tom Hernry, pp26
They are force field lines at right angles to each other as depicted in the related link.
they show wich way iron shavings would align themselves They always make closed loops. Electric field lines can either form closed loops or they can start and finish on isolated electric charges. Magnetic field lines always only form closed loops.
Depending on the direction of the magnetic field and the charge on the particle, the charge would move in a circular fashion either clockwise or anticlockwise depending on the circumstance. Using the right hand palm (push) rule, find the direction of the force (palm) and the charge continues on that path in a circular motion. If the particle leaves the field, it continues in that direction traveling in a straight line unless under other influences.
magnetic field line is an imaginary line showing magnetic energy between a north and south pole .
A magnetic field line shows the direction a compass needle would point.
From that list, I'll have to go with 'B'.
no
This is true for any contiguous function, not just magnetic fields.
Vector.
One property of a magnetic field is that its divergence is zero. That means that a magnetic field line is always a loop and that the net magnetic field coming out of or going in to an enclosed surface is always zero. The result of this is that there are no magnetic monopoles, at least none discovered. Theories, however, do abound.
Have you ever seen a magnet? Did you see the field? There you go. While you can't see the field itself directly, you can see the effects of the field if you use iron filings or something like that; they'll line up with the magnetic field lines
align in the same direction, creating a magnetic field within the iron bar. This alignment occurs due to the interaction between the Earth's magnetic field and the magnetic properties of the iron, resulting in the iron bar becoming magnetized.
I think it is a mistake to refer to magnetic field 'flowing. Magnetic fields just are, they can change, and these disturbances might move in space, but the field itself does not flow. That being said, and assuming you meant to ask in which direction a magnetic field points the answer is that a magnetic field points towards the south pole of a magnet and away from the north pole. A magnetic field cannot be divergent (i.e. there are no sources) and any field line must be closed.
Induction: Uses electrical energy to create a magnetic field and the magnetic field restores energy back to the line when it collapses.Electrical Theory, Tom Hernry, pp26
Then, at some point, the field would go into two directions simultaneously, which doesn't make much sense. The magnetic field lines form continuous closed loops.The tangent to the field line at a point represent the direction of the net magnetic field B,at that point.The magnetic field lines do not intersect,if they did, the direction of the magnetic field would not be unique at the point of intersection.