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Inductive ammeters work because of what principle?
Inductive Ammeters do not make physical contact with the circuit, but measure the strength of the magnetic field surrounding the wire carrying the current and measures the strength of the magnetic field that surrounds any conductor carrying a current.This means that the meter probe surrounds the wire(s) carrying the current and measures the strength of the magnetic field that surrounds any conductor carrying a current.
How does an open or split jaw amp meter work?
It puts an iron core around a conductor, which allows the meter's circuitry to sense the strength of the magnetic field. The strength of the field around the conductor is related to the amount of current flowing.
What is formed around a conductor when a current is passed through it?
A magnetic field.
What is the principle of motor action?
Motor runs by the principle of Michael Faraday's Electromagnetic Induction. It is defined as "when a current-carrying conductor is located in an external magnetic field perpendicular to the conductor, the conductor experiences a force perpendicular to itself and to the external magnetic field". The direction of rotation is determined by the Right-hand Rule and is "if the right thumb points in the direction of the current in the conductor and the fingers of the right hand point in the direction of the external magnetic field, then the force on the conductor is directed outward from the palm of the right hand".
What is the function of field winding in DC generator?
The motor needs the current and magnetic flux to create motion The magnetic field is created by field winding where as armature carries the current resulting into the rotation of armature
What determines the strength of the magnetic field when current flows through a conducter?
The strength of the magnetic field around a conductor carrying current is determined by the amount of current flowing through the conductor. The greater the current, the stronger the magnetic field. Additionally, the shape and orientation of the conductor also play a role in determining the strength of the magnetic field.
What is the relationship between magnetic fields and electricity?
-- A current flowing through a conductor creates a magnetic field around the conductor. -- Moving a conductor through a constant magnetic field creates a current in the conductor. -- If there's a conductor sitting motionless in a magnetic field, a current flows in the conductor whenever the strength or direction of the magnetic field changes.
What is the magnetic effects of electrical current?
When an electrical current flows through a conductor, it creates a magnetic field around the conductor. This phenomenon is known as electromagnetism. The strength of the magnetic field is directly proportional to the current flowing through the conductor.
Current passing through a conductor is increased from 10 A to 15 A. This decreases the strength of the magnetic field produced by the conductor.?
Increasing the current passing through a conductor results in a stronger magnetic field, not a weaker one. Therefore, increasing the current from 10 A to 15 A should increase the strength of the magnetic field produced by the conductor.
Force on a current-carrying conductor?
When a current-carrying conductor is placed in a magnetic field, a force is exerted on the conductor due to the interaction between the magnetic field and the current. This force is known as the magnetic Lorentz force and its direction is perpendicular to both the magnetic field and the current flow. The magnitude of the force depends on the strength of the magnetic field, the current flowing through the conductor, and the length of the conductor exposed to the magnetic field.
Dc current having magnetic field?
When a direct current (DC) flows through a conductor, it generates a magnetic field around the conductor. This phenomenon is described by Ampere's law, which states that a magnetic field is produced around a current-carrying conductor. The strength of the magnetic field is directly proportional to the current flowing through the conductor.
What determines the strength of a magnetic field?
factors on which magnetic field a bar magnet depends :- 1. pole strength of the magnet 2. medium in which the bar magnet is present(since the permittivity changes) factors on which external magnetic field(B) of a current carrying coil depends:- 1. the amount of current flowing through the conductor 2. the perpendicular distance of the point from the conductor. 3. medium in which the conductor is present(since the permittivity changes)
What is formed around the conductor whenever an electric current flows through a conductor?
A magnetic field is formed around the conductor when an electric current flows through it. The strength of the magnetic field is directly proportional to the magnitude of the current flowing through the conductor.
How is the movement of electrons in a conductor related to the formation of magnetic field?
When electrons move through a conductor, they create a flow of electrical current. This flow of current generates a magnetic field around the conductor in accordance with Ampere's law. The strength of the magnetic field is directly related to the magnitude of the current and the distance from the conductor.
Does a change in the flow of current through a conductor causes a change in the electromagnetic field surrounding the conductor?
Yes. The strength of the magnetic field surrounding a conductor is proportional to the magnitude of the current in the conductor.
What happens when an electrical current runs through a conductor?
When an electrical current runs through a conductor, electrons flow in the direction of the current. This flow of electrons creates a magnetic field around the conductor. The amount of current flowing through the conductor is directly proportional to the strength of the magnetic field produced.
Can electricity easily produce a magnetic field?
Yes, electricity can easily produce a magnetic field by running current through a conductor. The magnetic field strength is directly proportional to the amount of current flowing through the conductor.
