The magnetic field B is defined from the Lorentz Force Law, and specifically from the magnetic force on a moving charge:The magnitude of the force is F = qvB sin? where ? is the angle < 180 degrees between the velocity and the magnetic field. [embed]https://www.youtube.com/watch?v=csMqfwJRjCs[/embed]
How do you find the magnitude of a magnetic field?
The magnitude of the force on a wire carrying current I with length L in a magnetic field is given by the equation. F=ILBsin? where ? is the angle between the wire and the magnetic field. The force is perpendicular to the field and the current.
Does magnetic field have magnitude?
In equations the magnitude of the magnetic field is given the symbol B. You may also see a quantity called the magnetic field strength which is given the symbol H. Both B and H have the same units, but H takes into account the effect of magnetic fields being concentrated by magnetic materials.
What is the magnitude B of the magnetic field?
Equation : B=2?R?0?i? gives the magnitude B of the magnetic field set up by a current in an infinitely long straight wire, at a point P at perpendicular distance R from the wire.
What is the magnitude of magnetic field per unit length?
What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of 30? with the direction of a uniform magnetic field of 0.15 T? Angle between the wire and magnetic field, ?? = 30°. Hence, the magnetic force per unit length on the wire is 0.6 N m–1.
What are the magnitude and direction of the magnetic field?
The magnitude of the magnetic field is 6.00 x 10–6 T, which can also be written as (micro-Tesla). The direction of the magnetic field can be determined using the “right hand rule”, by pointing the thumb of your right hand in the direction of the current.
What is the density of magnetic field?
The magnetic flux density or magnetic induction is the number of lines of force passing through a unit area of material, B. The unit of magnetic induction is the tesla (T).
How does the magnitude of a magnetic field vary with distance?
The strength of the magnetic field decreases with distance from the wire. (For an infinite length wire the strength is inversely proportional to the distance.)
What is magnetic field short answer?
The magnetic field is the area around a magnet in which there is magnetic force. Moving electric charges can make magnetic fields.In physics, the magnetic field is a field that passes through space and which makes a magnetic force move electric charges and magnetic dipoles.
What is the magnitude of magnetic field at the Centre O?
6???T.
Is Tesla a SI unit?
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 the magnitude of the magnetic force on the loop?
zero
In a uniform magnetic field the net force on a current loop is zero. But each of the non-zero forces has a lever arm about the center of the loop, and therefore exerts a torque ? = (L/2)F about the center of the loop.
What do you understand by the magnitude of a magnetic field of 1.5 T?
Explanation: When there is relative motion, a connection between electric and magnetic forces emerges – each affects the other. An alpha-particle (q=3.2?10?19C) moves through a uniform magnetic field whose magnitude is 1.5 T.
What is the magnitude of the magnetic force on the proton?
0.40 T
The proton encounters a magnetic field whose magnitude is 0.40 T and whose direction makes and angle of 30.0 degrees with respect to the proton’s velocity (see part (c) of the figure).
What is the magnitude of the magnetic force acting on the proton?
Magnitude of the magnetic force on the proton is understood as magnitude of the force experienced by the proton in the magnetic field which has been calculated and is =0 .
What is the unit of magnetic field?
The tesla (symbol: T) is a derived unit of the magnetic B-field strength (also, magnetic flux density) in the International System of Units. One tesla is equal to one weber per square metre.
Is magnetic field same as magnetic field density?
Another way to put it is that magnetic field strength (H in amperes per meter) is the amount of magnetizing force.Magnetic flux density (B in tesla or Weber/m2) is the amount of magnetic force induced on the given body due to the magnetizing force H.
What is magnetic field Class 12?
Magnetic Field:
Magnetic Field is defined as the space around a magnet (or a current-carrying conductor) in which its magnetic effect can be experienced.A magnetic field in a region is said to be uniform if the magnitude of its strength and direction is the same at all the points in that region.
Where is the magnetic field the strongest?
the poles
It is strongest at the poles. So, what are magnetic poles? Magnetic poles are opposite ends of a magnet where the magnetic field is strongest.
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 .
What is the magnitude of the magnetic field due to the long straight wire at a distance r away from it?
The magnitude of the magnetic field field a radial distance r away from a long, straight wire is B = ?0I/(2?r). Details of the calculation: B = (4?*10–7 N/A2)*30 A/(2?*0.01 m) = 1.2*10–5/*0.02 = N/(As) = 5*10–4 T.
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