Three different ways of producing magnetic fields are 1)
A loop or solenoid carrying current
. 2) A magnetic bar, round magnet or horse-shoe magnet. 3) A coil which carries current.
What are the two methods for producing magnetic field?
The two methods of producing the magnetic field are: 1) Passing the current through any conductor. 2)
The permanent magnet also produces the magnetic field around it
.
What are the three methods of producing magnetic field?
- Permanent magnets,
- Electromagnets and.
- Earth’s magnetic field.
What device is used to draw magnetic fields?
Magnetic Compass
is used to draw magnetic field lines.
What factors influence the magnetic field around the current carrying conductor?
Magnetic field due to a current-carrying conductor depends on
the current in the conductor and distance of the point from the conductor
. The direction of the magnetic field is perpendicular to the wire.
Why can’t two magnetic field lines cross each other?
The magnetic field lines never intersect each other because if two or more lines intersect each other than it means that
at that point of intersection, the magnetic field has two directions at the same point
. This is not possible for a magnetic field to point in more than one direction at the same point.
How many ways can magnetic field be produced?
Three ways
to produce magnetic field are :i Charge-induced magnetic field. ii A current-carrying coil may do work. iii The permanent magnet and an electromagnet.
How do you induce current in a coil?
- If a coil is moved rapidly between the two poles of a horseshoe magnet, then an electric current is induced in the coil.
- If a magnet is moved relative to a coil, an electric current is induced.
- By keeping it stationary and rotating a magnet inside it, the current in the coil can be induced.
What pole does a compass point to?
The magnetic field is a zone where the force is active along imaginary lines. From the south magnetic pole to
the north magnetic pole
, this force has an effect on all magnetized objects, such as the needle of a compass. Under the effect of Earth’s magnetic field, the needle always points toward the north magnetic pole.
What is the SI unit of magnetic field?
The tesla (symbol T)
is the derived SI unit of magnetic flux density, which represents the strength of a magnetic field. One tesla represents one weber per square meter.
What is magnetic field lines?
Magnetic field lines: Magnetic field lines are
imaginary lines around the magnet
. The magnitude of a field is indicated by its line’s density. Near to South and North Pole of a magnet, the magnetic field is stronger and will get weaker when it moves away from the poles.
What is the relation between magnetic field current and distance?
The magnetic field at point P due to the element dl is found to be proportional to the current in the wire, and the length of dl and is
inversely proportional to the square of the distance R
. The magnitude of this field is given by, ⇒|d→B|=μo4πIdlsinθR2.
Does current carrying conductor produces electric field?
As we know that a current carrying conductor, such as a metal wire will produce a magnetic field around it, the motion of charge around the wire in the form of concentric circles. … So,
the conductor does not induce any electric field around itself
. However, a magnetic field is produced in the surroundings.
What are the factors on which the magnetic field?
The magnitude of magnetic field produced by a current carrying circular loop depends upon: The current passing through the circular loop-directly proportional.
The radius of circular loop
-inversely proportional. Number of turns of the wire in the circular loop-directly proportional.
Why do electric field lines never cross each other Class 12?
And
due to two different tangents there are two different directions of electric field at that point
. It is not possible that there are two directions of electric field at the same point. Hence, electric field lines never intersect each other is true and this is also a property of electric field lines.
Why are magnetic field lines closed curves?
Magnetic field lines are closed curves
as they propagate from the North pole outside the magnet’s body to the magnet’s body and from the south pole to the north pole inside the magnet’s body
. Hence, the magnetic field lines are closed.
