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Dear students, today we have put the work report of Physics 2 laboratory for you to download. We hope that you will be satisfied and you will be able to get the necessary benefit. This work report of Physics 2 laboratory has 22 physics experiments in Word file format and with the ability Edited

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لینک کوتاه : https://en.magicfile.ir/?p=2116
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دانلود گزارش کار آزمایشگاه فیزیک2

Dear students, today we have put the work report of Physics 2 laboratory for you to download. We hope that you will be satisfied and you will be able to get the necessary benefit. This work report of Physics 2 laboratory has 22 physics experiments in Word file format and with the ability Edited.

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آزمایش های این مجموعه به شرح زیر است

حساب کردن اندازه مقاومت مجهول به روش ولتمتر و آمپر متر
حساب کردن اندازه مقاومت
اندازه گیری مقاومت مجهول به روش پل وتسون
تحقیق قانون اُهم
آشنایی با دستگاه های اندازه گیری
آشنایی و طرز کار با اسیلوسکوپ
مشاهده شکل موجها
اندازه گیری ولتاژ قله به قله یک موج
اندازه گیری ولتاژ یک نقطه ازموج
اندازه گیری فرکانس
قوانین کیرشهف و به کار بردن آن در مدارهای ساده جریان مستقیم
مطالعه شارژ و دشارژ خازن در جریان مستقیم
اندازه گیری مقاومت درونی منبع تغذیه و باتری
اندازه گیری مقاومت درونی ولت متر
حساب کردن اندازه مقاومت


مطالعه قوانین کیرشهف
مقدمه:
Kirschoff's laws are principles that are used in the evaluation and calculation of electrical circuits and networks, and in the case of direct current circuits, these laws are described as follows.
1- قانون اول کیرشهف:( قانون انشعابها)
At any point of the electric circuit, the sum of the intensity of the currents that enter that point is equal to the intensity of the currents that leave that point, or in other words, the algebraic sum of the intensity of the currents towards a point is equal to zero.
در هر نقطه از مدار(هر گره)
In the above relation, it should be noted that the sign of the currents approaching a point and the current moving away from that point are considered different, for example, the currents approaching a point with a positive sign and the currents moving away from that point At that point, algebraically add them together with a negative sign (or vice versa, i.e. input currents with a negative sign and output currents with a positive sign). This law is derived from the principle of conservation of charge.

2- قانون دوم کیرشهف : (قانون مدارهای بسته)
We consider a circuit according to the figure below, in this circuit it is emphasized that the electromotive force E always has an internal resistance. This resistance is located inside the battery and between its two poles and is an integral part of the battery. If we considered it outside the battery poles in the above figure, it was because we always considered the existence of this resistance.
At time dt, the amount of energy Ri2dt appears in the external resistance R and ri2dt in the battery in the form of thermal energy. During this time, the value dq = Idt of the electric charge is transferred from one pole of the battery to the other; The work that the battery does to transfer this amount of charge is equal to:
According to the principle of conservation of energy, the work done by the battery must be equal to the thermal energy, so:
(1)
Considering the fact that the electric potential of a point has one value (the value of the electric potential is unique), if we start moving from any circuit point in a desired direction and collect the changes in the electric potential on the circuit when we return to the initial point We must have the same potential as before, that is, the algebraic sum of potential changes when we complete a complete circuit becomes zero. For example, if we start moving from point a, whose electric potential is assumed to be Va in the above figure, and travel the mentioned circuit in the clockwise direction, when passing through the resistance, the electric potential will change by the amount of IR. The sign (-) shows that the upper part of the resistance is higher in electric potential than the lower part, and this is completely correct because positive charge carriers tend to go from higher potential to lower potential (the direction of flow is positive charge and we we started moving in the direction of the current) when we pass the battery, the potential increases to +E because the battery does positive work on the charge carriers. Because it transfers them from a point that has a small potential to a point that has a higher potential. In this way, if we add the potentials together, when we reach the initial point, the potential value of this point should be Va again; Therefore, we can write:

Whenever we apply a variable potential difference V to the two ends of a conductive object, we measure the current I for each applied potential difference and draw its representation in terms of V. The straight line obtained shows that the resistance of this conductor is always constant and does not depend on the voltage we apply to measure it. This important result, which is true for metallic conductors, is known as Ohm's Law, and any conductor that obeys this law is called an Ohmic conductor.
It should be noted that most conductors do not follow Ohm's law and the relation IR=V does not express Ohm's law. A conductor obeys this law only if its V, R curve is linear.
وسایل آزمایش:
چند مقاومت معلوم، ولت سنج، آمپر سنج، منبع تغذیه، سیم های رابط.

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ارسال کننده نظر شهربانو - 2023/1/10 11:55:53 pm
سلام ممنون از سايت خوبتون واقعا فايل خوب و مفيدي بود موفق باشيد
 
پاسخ پشتیبانی فایل سحر آمیز
با سلام لطف مي کنيد
 
ارسال کننده نظر مسل - 2023/2/03 10:49:05 pm
سلام سايتتون بي نظيره واقعا خسته نباشيد فايل رو دانلود کردم عالي بود
 
پاسخ پشتیبانی فایل سحر آمیز
سلام نظر لطف شماست
 
ارسال کننده نظر ونه - 2023/1/24 5:01:35 pm
Greetings to educated people, who always make a continuous effort to provide the latest. Congratulations to the professor for publishing this article. Always be successful and victorious.
 
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با سلام ممنون از ارسال ديدگاه خود
 

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