Do you know that this Racket Or What is galvanometerIf not then this article of today can be very useful for you. Have you ever thought about how an Utility Company finds out how much Electrical Power we have at our house.
The answer is with the help of an Electric Meter. This Galvanometer is also a type of electronice instrument that is used in a conductor to find the presence, direction and strength of the electric current.
When an electric current passes through a Conductor, then the Magnetic Needle automatically turns in the right angles to the conductor so that its direction is paralyl, Lines of induction does the Around and North Polle Pole In Direction in which Lines of induction flows. A Galvanometer is a type of ammeter.
This is an instrument that is used to detect and measure the electric current. So today I thought that why not give you complete information about the galvanometer and what is measured by the galvanometer so that there is no need to ask someone else in the coming time. So let's start without delay and know that this What is Galvanometer,
What is galvanometer (What is Galvanometer in Hindi)
This moving coil is a type of electromagnetic device that can measure the current of small values.
It contains components like Permanent Horseshoe Magnets, Coil, Soft Iron Core, Pivoted Spring, Non-Metallic Frame, Scale, and Pointer.
Galvanometer
Torque Acts a Current Carrying Coil If it is suspended a uniform magnetic field.
Because of this reason, he starts rotating coil. Therefore, we can say that the deflection of a coil occurs in a moving coil galvanometer directly proportional similar to the current flow in that coil.
If we understand in another way, it is a printiometer's print, when a current sustaining coil is placed between a magnetic field, then it does a torque experience.
Galvanometer Definition
It consists of a rectangular coil in which a number of turns are mehjud in thin insulated copper wire which is wounded in a light metallic frame.
A coil is suspended a fin between pole pieces of Horseshoe Phosphor – Bronze Strip By a movable torsion head. Coil The lower end is connected to a hairspring (which is made from Phosphor Bronze) which has only a few turns.
At the same time, the second end of spring is connected with a binding screen.
A Soft Iron Cylinder is symmetrically placed inside it coil. These hemispherical magnetic poles produce a radial magnetic field that has the plan of coil in all positions with the magnetic field.
A small plane mirror is attached to the Suspension Wire that is used with a lamp and also a scale arrangement to measure the deflection of the coil.
What is the main components of Galvanometer?
If you Galvanometer If you want to know about the main components of the Main, then it is Moving Coil, Suspension, Torsional Head and a Permanent Magnet. Let us know about them in detail.
Moving Coil – This is the current carrying part of Moving Coil Galvanometer. It is either rectangular or circular and it contains many number of turns of Fine Copper Wire. In this, coil freely moves its vertical axis of symmetry in the middle of the poles of a permanent magnet. It provides Iron Core Low Reluctance Flux Path and therefore provides Strong Magnetic Field Coil to move it inside.
Suspension – In this, coil is suspended from a flat ribbon that carries the current to Coil. At the same time, the second current-carrying coil is Lower Suspension, whose torque effect is very negligible. This upper suspension coil is made from Gold or Copper Wire which is of a Ribbon form. The Mechanical Strength of Wire is not as strong, and therefore galvanometers should carefully handle without any jerks.
Mirror – This suspension carries a small mirror which casts the beam of light. This beam of light is placed in the scale in which the deflection is measured.
Torsion Head – This is the use of Torsion Head to control the position of Coil and to adjust Zero Setting.
What is the sensitivity of Moving Coil Galvanometer?
The sensitivity of a moving coil galvanometer is defined about two things, the first is the change of the deflection of the Galvanometer and the second is in the change of the current. So we can write, Sensitivity = dθ/di.
If a galvanometer produces a large deflection for a small amount of current, then it is called sensitive.
Moving Coil Galvanometer's Current is called: I = (c/nBA) × θ
Therefore, θ = (NBA/c) × i.
If we both differentize through I in sides, we have: Dθ/di = (nBA/c),
The sensitivity of Moving Coil Galvanometer increases when:
- No. Of turns and area of the coil are increased.
- When magnetic induction Is increased
- When the couple of a suspension fibre is decreased to Per Unit Twist.
Types of Galvanometer
Let us know about different types of Galvanometer.
- Moving Coil
- Suspended Coil
- Tangent Galvanometer
- Sine Galvanometer
What is measured by galvanometer
Let's try to know about the applications of Galvanometer.
- They are used to find the direction of current flow in a circuit.
- It is also used to determine a null point of a circuit. Null Point is a situation in which no current flows flow through any circuit.
- It is also used to measure the current.
- Also to learn the voltage between two points in Circuit Galvanometer Is used
Galvanometer's advantages
- Sensitivity increases such as you increase the value of N, B, A and together the value of K is decreased.
- The eddy currents that are born in this frame soon rests the coil, because the coil wound over the metallic frame.
Galvanometer disadvantages
- Its sensitivity cannot be changed according to you.
- Overloading Due to being, it can harm any type of Galvanometer.
What is the difference between Galvanometer and Ammeter?
Let us know about the difference between Galvanometer and Ammeter: –
1. Galvanometer is a Mechanical Devices that is used to find the magnitude and direction of the current, while ammeter is an Electric devices to measure measure of the Magnitude of the Current.
2. This Galvanometer is used to know the direction of the current, while ammeter is used to measure the magnitude of the current.
3. Magnetic Field is used for the work of Galvanometer, while there is no need for Magnetic Field for the working of Ammeter.
4. Galvanometer's accuracy is less than ammeter.
5. Galvanometer is used only to measure the direct current, while ammeter is used to measure both direct and alternating current,
6. Galvanometer sensitivity Is more Ammeter In Comparison of.
7. Galvanometer is mostly used in Bridge and POTENIOMETER zero current To detect
Ammeter is directly connected to a circuit in a circuit whose magnitude is to be measured.
What did you learn today
I hope you have this article of mine What is galvanometer (What is Galvanometer in Hindi) Must have liked. It is always my endeavor that the readers should be provided with complete information about the theory of galvanometer so that they do not need to find them in the context of that article in another sites or internet.
This will also save their time and they will also get all the information in one place. If you have any doubts about this article in your mind or you want that there should be some improvement, then you can write low comments for this.
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