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What is the unit for Magneto motive Force?
around the megnet genrated field its call magneto motive force
Magnetizing force is equal to magnetic force?
'Magnetic Force' (symbol: H), an obsolete term, which has been long replaced by the term, 'Magnetic Field Strength', is defined as the magnetomotive force per unit length of a magnetic circuit. It is measured in amperes per metre(A/m), although this is often spoken as 'ampere turns' per metre. And, no, it is not the same thing as 'magnetic force'.(If you compare a magnetic circuit with an electric circuit, then 'magnetomotive force' is equivalent to 'electromotive force' -and, continuing the analogy, magnetic field strength is equivalent to 'voltage gradient'.)Magnetomotive force is the product of the current flowing through a coil and its number of turns. It's unit is the ampere (A), but is often spoken as 'ampere turn'.So, by way of example, suppose we have a magnetic circuit comprising a steel toroid of circumference 100 mm (0.1 m), around which a coil of 200 turns is uniformly wound. If a current of 0.5 A passes through the coil, then the magnetic field strengthwill be:H = (I N) / circumference = (0.5 x 200) / 0.1 = 1000 A/m
What is the name of the product which colourless solution turns orange?
The product you are referring to is likely iodine. Iodine is a chemical element with a colorless solution that turns orange when it comes into contact with starch.
How will you compare the strength of electromagnets by the number of turns of copper wire?
The strength of an electromagnet is directly related to the number of turns of copper wire around its core; as you increase the number of turns, the magnetic field strength increases proportionally. This is because each loop of wire contributes to the overall magnetic field generated when an electric current flows through it. To compare the strength of different electromagnets, you can measure the magnetic field strength or the force exerted on a ferromagnetic object, observing that more turns typically yield a stronger magnet. However, other factors like current and core material also play significant roles in determining overall strength.
Does the formula used to calculate the turns ratio uses the phase voltages and phase current?
For a transformer, the turns ratio always applies between its primary and secondary windings. So the turns ratio for a three-phase transformer is the ratio of primary to secondary phase voltages, not between line voltages.
What is motivational force?
mmf is which sets up or tends to set up the magnetic flux in magnetic circuitNote. The term is magnetomotive force, notmagnetic motive force. For a coil, the magnetomotive force is the product of the current flowing in that coil and the number of turns, and is measured in amperes (A), although it is often spoken as 'ampere turns', to avoid any confusion with current.
Does the number of turns in the electromagnet effect its strength?
Magnetic induction B = mu * n * I Here mu is the magnetic permeability of the core material. n - the number of turns per unit length and I - the current in ampere. So as number of turns increases the magnetic effect too increases
What is an ampere-turn?
An ampere-turn is the unit of magnetomotive force, calculated by multiplying the number of turns in a coil by the current flowing through it. It represents the strength of a magnetic field generated by an electric current in a coil.
Why would 1volt 12amps have a stronger magnetic field than 12volts 1amp please explain?
The strength of a magnetic field is determined by the product of current and number of turns of wire in a coil (ampere-turns). In the case of 1V and 12A, the ampere-turns would be 12, while for 12V and 1A, the ampere-turns would be 12 as well. Hence, both configurations would have similar magnetic field strengths.
How do you calculate turns ratio for current transformer?
The turns ratio is the number of primary turns divided by the number of secondary turns. This is the same ratio as input current to output current. ie the turns ratio N = I1/I2
What is ampere turn formula?
Magnetomotive force establishes magnetic flux in a magnetic circuit, which is opposed by the reluctance of that circuit. It's easy to relate these magnetic quantities to the equivalent quantities in an electric circuit:magnetomotive force is equivalent to electromotive forceflux is equivalent to currentreluctance is equivalent to resistanceA magnetomotive force (mmf) is created whenever an electric current passes through a coil. It's magnitude is determined by the product of the current (I) flowing through the coil and the number of turns (N): mmf = I NThe unit of measurement of magnetomotive force is the ampere. Although, to prevent it from being confused with the unit of measurement for current, it is usually spoken as "ampere turn".
What is mmf?
Full-form Of MMF: MAGNETO MOTIVE FORCEDefinition Of MMF ( Magneto motive Force ): Just as electromotive force ( emf ) is necessary to pass current in electric circuit, magneto motive force ( mmf ) is necessary to establish flux in the magnetic circuit. Magneto motive force is the multiplication of current flowing through the coil and the number of turns of the coil.Unit of magneto motive force ( mmf ) is ampere turn.Thus, it should be understood that the magneto motive force can be increased by increasing the number of turns in the coil or by increasing the current flowing through the coil or by increasing both.CommentThe unit of measurement of magnetomotive force is actually the ampere, although it is frequently spoken as 'ampere turn' to prevent its confusion with electric current.
Which magnetic quantity is expressed in ampere turns?
Magnetomotive force is the magnetic quantity expressed in ampere turns. It represents the total magnetic field strength generated in a magnetic circuit.
What reference to a transformer the current times the number of turns is called the?
Transformer turns ratio
What is armature magnetomotive force?
Armature magnetomotive force (mmf) is caused by current flow in armature windings. The source of mmf is armature reaction that is why the term "armature" is used.AnswerMagnetic circuits are often compared with electriccircuits. A magnetomotive force (equivalent to 'voltage') creates magnetic flux (equivalent to 'current'), which is opposed by reluctance (equivalent to 'resistance').So a magnetomotive force is the source of magnetic flux, and is the product of the current passing through a winding and the number of turns of that winding. In SI, it is expressed as amperes (although it is generally 'spoken' as ampere-turns).As the original answer explains, an armature magnetomotive force is simply that set up by the current passing through the machine's armature.
What is the formula for calculating magnetic field?
'Magnetic field strength' (symbol: H) is defined as 'the magnetomotive force, per unit length, of a magnetic circuit'. In SI, it is expressed in amperes per metre (A/m), which is often spoken as "'ampere turns' per metre".It's equation is: H = (IN) / lwhere:H = magnetic field strength (ampere per metre)I = current flowing through coil (amperes)N = number of turns in coill = length of magnetic circuit
What determines the strength of the magnetic field when current flows through the conductor?
"If the conductor is wound into a coil the magnetic lines of flux add to produce a stronger magnetic field... Another factor is the amount of current flowing through the wire" (from Delmar's Standard Textbook of Electricity: Fifth Edition, Unit 4 - Magnetism, pages 111-112) The strength of an electromagnet is proportional to its ampere-turns; determined by multiplying the number of turns of wire by the current flow.
