Table of Contents
- 1 What is DL in magnetic force?
- 2 What is DL in Biot Savart law?
- 3 What is the difference between magnetic field and magnetic force?
- 4 How is the magnetic field DH from a short section dl of a current carrying wire given by Biot Savart’s Law expressed as?
- 5 Which statement best describes magnetic field lines?
- 6 What does the distance between the field lines in a magnetic field tell you?
- 7 How do you find the direction of magnetic field lines?
- 8 What is a field line plot for a bar magnet?
What is DL in magnetic force?
Direction of magnetic field: The direction of the magnetic field can be determined by the right hand rule. In this equation, dl represents the differential of length of wire in the curved wire, and μ0 is the permeability of free space. This can be related to the Biot-Savart law.
What is DL in Biot Savart law?
Biot Savart Law states that. The magnetic intensity dH at a point A due to current I flowing through a small element dl is. Directly proportional to current (I) Directly proportional to the length of the element (dl)
What is the source of magnetic field lines?
Hint:The main sources of magnetic field are permanent magnet, current carrying conductor and electromagnet. A magnetic field is created whenever the charge is in motion.
How will you describe the magnetic field lines far from the magnet?
If you place a compass near the north pole of a magnet, the north pole of the compass needle will be repelled and point away from the magnet. Thus, the magnetic field lines point away from the north pole of a magnet and toward its south pole.
What is the difference between magnetic field and magnetic force?
Therefore magnetic force is defined as, “The force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.” The space or the region around a magnet within which magnetic force is exerted on other magnet is called the magnetic field.
How is the magnetic field DH from a short section dl of a current carrying wire given by Biot Savart’s Law expressed as?
The Biot-Savart’s law gives the magnetic field produced due to a current carrying segment. The magnitude of the magnetic field dB at a distance r from a current carrying element dl is found to be proportional to I and to the length dl. And is inversely proportional to the square of the distance |r|.
What is the direction of DL and I in Biot Savart law?
The magnitude of the magnetic field dB at a distance r from a current carrying element dl is found to be proportional to I and to the length dl. And is inversely proportional to the square of the distance |r|. The direction of the Magnetic Field is perpendicular to the line element dl as well as radius r.
Which is the equation of the magnetic field according to Biot Savart’s Law *?
The magnetic field at point P is calculated by the Biot-Savart law (Equation 12.2. 3): B=μ04πIΔlsinθr2=(1×10−7T⋅m/A)(2A(0.01m)sin(89.4o)(1m)2)=2.0×10−9T.
Which statement best describes magnetic field lines?
However, the option that best describes the magnetic field lines is e. They show the relative strength and direction of the magnetic field.
What does the distance between the field lines in a magnetic field tell you?
The distance between the lines indicates relative strength of the magnetic field. The closer the lines are, the stronger the magnetic field is. Iron filings and a compass may be used to trace the shape, strength, and direction of magnetic field lines.
What type of force is a magnetic field?
magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron.
What are the magnetic field vectors and magnetic field lines?
Current Element: Magnetic Field Lines – Field vectors (dB) and magnetic field lines of a current element (dl) are like those generated by a + charge dQ moving in direction of vdrift. – Field lines are circles in planes ┴to dl and centered on line of dl.
How do you find the direction of magnetic field lines?
Your fingers curl around the charge in direction of magnetic field lines. – The magnetic field lines are circles centered on the line of v and lying in planes perpendicular to that line. – Direction of field line : right hand rule for + charge point right thumb in 2. Magnetic Field of a Current Element
What is a field line plot for a bar magnet?
Figure 2: Field line plot for a bar magnet. The field-line description has some useful properties: Magnetic field lines never cross. Magnetic field lines naturally bunch together in regions where the magnetic field is the strongest. This means that the density of field lines indicates the strength of the field.
What is a magnetic field?
The area around a magnet within which magnetic force is exerted, is called a magnetic field. It is produced by moving electric charges. The presence and strength of a magnetic field is denoted by “magnetic flux lines”. The direction of the magnetic field is also indicated by these lines.