so we did an experiment on AC fields For the first section of the experiment, th

Question

so we did an experiment on AC fields

For the first section of the experiment, the center of a compass was placed 10 cm away from the center of a 400 turn coil and the DMM’s multiselector was adjusted to measure DC Amps until the compass needle was deflected by 45 degrees and the current running through 400 turn coil, 200 turn coil and 800 turn coil was recorded when the needle moved by 45 degrees. In the second section of the experiment, a coil with N = 800 turns was used and clamped to a ring stand. Then a magnet wand was moved back and forth through the coil and the relationship between maximum voltage across the coil and maximum speed of the magnet across the coil was observed. Then the clear end of the magnet wand was put into the coil and the black magnet end was placed just above the top of the coil and then the wand was dropped through the coil. Then the clear end of the magnet wand was inserted into the coil so that about half of the wand was above the coil and then the wand was dropped again through the coil and the observations were recorded. In the third section of the experiment, a function generator was adjusted to 0.5 Hz and the compass was placed next to the opening of 800-turn coil and the time it took for the needle to move from North to South position was recorded, which was 25 seconds. Then the frequency was adjusted to 2.5 Hz and the compass was placed next to the opening of 800-turn coil. The behavior of the compass at 2.5 Hz was recorded. For the fourth section of the lab, two different turn coils were connected in parallel where one coil was connected as primary coil and the other was connected as secondary coil and two coils with N turns were put in different configurations and the primary voltage Vp and secondary voltage Vs going through the coils with N turns were recorded through voltmeters and flux density was calculated for all ten trials. The configurations included connecting the turn coils of 200, 400 and 800 into an iron core, box core and U core configuration for ten different trials. In the last section of the experiment two turn coils one as primary coil and one as secondary coil were placed in series and connected to a resistor of 10 ohms and same configurations as last section were used to record primary current Ip and secondary current Is of the coils for five different trials.

What are some possible systematic errors and how could that affect my data and how to fix them. I need three systematic errors! please help

Explanation / Answer

First let's define the concept of systematic errors.

Definition: It is one to that which is constant over the entire measuring process and, therefore , affects all measures a way defined and is the same for all.

Three systematic errors may be the following:

How could affect your data?

all your data can affect ocacionados incorrect values in your results

How to fix them?

ANSWERS:

In the first experiment you said: the DMM’s multiselector was adjusted to measure DC Amps and the experiment is about AC field, here there is a systematic errors, for example:

Error: The DMM multiselector was adjusted to measure DC Amp but no AC Amp there is a instrumental error because you do not used the correct equipment.

Solution: The DMM multiselector should be adjusted to measure AC amp.

In the third experiment you said: In the third section of the experiment, a function generator was adjusted to 0.5 Hz and the compass was placed next to the opening of 800-turn coil and the time it took for the needle to move from North to South position was recorded, which was 25 seconds. Then the frequency was adjusted to 2.5 Hz and the compass was placed next to the opening of 800-turn coil. The behavior of the compass at 2.5 Hz was recorded, there may be a personal error for example:

Error: in the third experiment you took the time for the needle to move from North to South position, to 0.5 Hz and 2.5 Hz if do not the same person who realize the measurement with stopwatch, you can could generate a personal error .

Solution: In this experiment the person that realize both measurement should be the same and realize many measurement and calculate an average for have a mean of measurement and reduce the percentage of error .

In the fourth experiment you said: “were recorded through voltmeters and flux density was calculated for all ten trials ..” and “the coils for five different trials….” When there are many trials should may be a standard procedure that allow realize all measurements correctly and reduce errors Probability.

Error: Many measurement without a standard have a highest percentage of error.

Solution: create a standart of measurement step by step and repeat for each trails.

If you have any question please let me know in the comments

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