Tangent Galvanometer help (square loops around compass)

In summary, the goal of your experiment was to create a tangent galvanometer and observe the deflection of a compass needle as the number of coils carrying current increased. From your results, you can conclude that the tangent galvanometer is sensitive to current and can be used as a current detection device.
  • #1
Atlaπtis
23
0
What I had to do for a physics prac was to create a tangent galvanometer using this like...square piece of wood and a flat piece of wood in the middle... and we put a compass in the middle and increased the number of coils (carrying current) and recorded the deflection made by the compass and number of coils..
I was just wondering, what kind of conclusions can I make about this? We weren't really told an aim on why we were doing it.. just kind of.. given instructions...
And I was also wondering what a tangent galvanometer actually does? My book says that it's used for current detection...

Thanks in advance for any help :)
Just incase you need my results, here they are (it goes number of turns, then the degrees measured from 0 by the north needle)
1
60 West
2
72 W
3
75 W
4
80 W
5
83 W
6
85 W
7
89 W
8
89 W
 
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  • #2
990 WBy looking at your results, you can conclude that the deflection of the compass increases as the number of coils carrying current increases. This means that the tangent galvanometer is indeed sensitive to current, which is its primary purpose. A tangent galvanometer is an instrument used to measure small electric currents. It works by using the magnetic field created by the current to deflect a needle connected to a galvanometer. The angle of deflection is proportional to the magnitude of the current and can be used to measure it.
 
  • #3


Based on the information provided, it seems like the experiment you conducted was to determine the relationship between the number of coils and the deflection of a compass in a tangent galvanometer. The tangent galvanometer is a device used to measure the strength and direction of an electric current. It works by creating a magnetic field using a circular coil of wire and then measuring the deflection of a compass needle placed in the center of the coil.

From your results, it can be observed that as the number of coils (and therefore the strength of the magnetic field) increases, the deflection of the compass also increases. This demonstrates the relationship between the strength of the magnetic field and the current passing through the coils.

As for the purpose of the experiment, it is likely that your instructor wanted you to understand the concept of a tangent galvanometer and how it can be used to detect and measure electric currents. By conducting the experiment and recording your results, you were able to see the relationship between the number of coils and the deflection of the compass, which is an important aspect of understanding how the device works.

In conclusion, your experiment showed the relationship between the number of coils and the deflection of a compass in a tangent galvanometer. This helps to demonstrate the concept of using magnetic fields to measure electric currents. Hopefully, this has helped to clarify the purpose of the experiment and the function of a tangent galvanometer.
 

Related to Tangent Galvanometer help (square loops around compass)

1. What is a tangent galvanometer and how does it work?

A tangent galvanometer is a scientific device used to measure the strength of an electric current. It consists of a circular coil of wire with a compass needle placed at the center. When an electric current passes through the coil, it produces a magnetic field which interacts with the Earth's magnetic field, causing the compass needle to deflect. The angle of deflection can be used to calculate the strength of the current using the tangent function.

2. What are the square loops around the compass in a tangent galvanometer for?

The square loops around the compass in a tangent galvanometer are used to produce a uniform magnetic field within the coil. This allows for more accurate measurements of the current strength as the deflection of the compass needle is not affected by any variations in the magnetic field.

3. How do you calibrate a tangent galvanometer?

To calibrate a tangent galvanometer, a known current is passed through the coil and the angle of deflection is measured. This angle is then used to create a calibration curve, which can be used to determine the current strength for any future measurements.

4. What are the limitations of using a tangent galvanometer?

One limitation of using a tangent galvanometer is that it can only measure direct currents. It is not suitable for measuring alternating currents. Additionally, the accuracy of the measurements can be affected by external magnetic fields, so it is important to ensure that the device is shielded from any magnetic interference.

5. What are some practical applications of a tangent galvanometer?

Tangent galvanometers have been used in a variety of scientific experiments and studies, such as measuring the strength of electric currents in circuits and studying the Earth's magnetic field. They have also been used in industry for quality control purposes, such as testing the strength of magnets and electronic components.

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