Magnetism
A long straight wire carries a current along the Z-axis. One can find two points in the X-Y plane such that :
Can two magnetic field lines intersect each other? Give reason to your answer.
No, two magnetic field lines do not intersect each other. If they would intersect, there would be two directions of the field at the specific point which is not possible.
A long straight wire carries a current along the Z-axis. One can find two points in the X-Y plane such that :
Which one of the following is a vector quantity ?
List two methods of producing magnetic fields.
A wire carrying $$I$$ is shaped as shown. Section $$AB$$ is a quarter circle of radius $$r$$. The magnetic field at $$C$$ is directed:
Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic lines of force concept :
You are provided with two similar bars, one is a magnet and the other is a soft iron bar. How will you distinguish between them without the use of any other magnet or bar? [Hint: A magnet when suspended freely will rest only in north-south direction, but soft iron bar will rest in any direction]
Sketch four magnetic field lines as obtained in a limited space on a horizontal plane in the earths magnetic field alone.
In a uniform magnetic field, the field lines are:
Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it. Describe some salient features of magnetic lines of force concept :
What are magnetic field lines? How is the direction of a magnetic field at a point determined? Mention two important properties of magnetic field lines.