Reduce voltage with resistor
ฝัง
- เผยแพร่เมื่อ 9 พ.ค. 2023
- Voltage reduction with resistance
By 4 resistors of 100 ohms and input voltage of 12 volts, create voltages of approximately 3, 6, and 9 volts
In this video, 4 voltmeters are used simultaneously
Instantly compare the input voltage with 3 other voltages
resistor 👉 100 ohm *4
wire and input variable voltage
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How is the current passing through several resistors in series calculated?
1. Calculate the total resistance of the series circuit by adding the individual resistances of the resistors together. Let's call this value Rt.
2. Apply Ohm's law to calculate the current through the circuit. The voltage across the circuit is equal to the voltage of the power source, and the resistance of the circuit is equal to the total resistance of the series resistors. Let's call the current through the circuit I.
I = V / Rt
3. Since the resistors are in series, the same current flows through each resistor. Therefore, the current through each resistor can be calculated using Ohm's law and the voltage drop across each resistor.
I1 = V1 / R1
I2 = V2 / R2
I3 = V3 / R3
.
.
.
where V1, V2, V3, etc. are the voltage drops across each resistor.
It is important to note that the voltage drops across each resistor can be calculated using the voltage divider rule, which states that the voltage across a resistor in a series circuit is proportional to its resistance. The voltage divider rule can be useful in cases where the voltage supplied to the circuit is divided among the series resistors.
Excellent
Nice sharing
True you made a voltage divider. However, unless anything you plan to use the voltages for is really very little current drain, those resistors will burn open... Take the input voltage and divide the resistor(s) value(s) into that voltage, you will see the current capability. And than the wattage of each resistor needs to be high enough to handle that current...
Dear garymucher
thanks for comment
Series resistors have an educational aspect and two resistors with suitable power can be used to reach the desired voltage
Good job
Great
Professional
👌 thanks
Thanks a lot
Para pelar los cables el alicate se usa del otro lado
Como se puede utilizar?
Hi boss! Ilove ur video but as a newvie what is the wattage of 100ohms resistor u use? Thanks and more power! 👍
@@electrofixtips thank you very much! ❤
Would it be possible to use this method to reduce the voltage of a 24V AC transformer down to 14V to charge a car battery?
Hi dear friend😊
Unfortunately no
Use an AC to DC converter
Only able for lets or very low consumption if not that resistor will burn 😂
Ok, I will comment since I noticed a few things and have been doing some math to fill in the gaps. However, I noticed that the resistors were not all facing the same direction for this video.
the resistance of a material itself does not have a direction. It opposes the flow of current equally regardless of which direction the current flows through the material. This is because resistance is a property of the material itself, like its length, width, or conductivity.
However, when analyzing circuits, we often refer to a direction of current flow. This is a convention to simplify calculations and circuit analysis. It doesn't affect the resistance value itself.
I what to buy a big resistor pack do you know what I'm looking for cuz I don't
You can use 1 watt resistors🌹
Ooo I am very glad to witness the discovery of a thing people will call a voltage divider in future 😂😂😂😂
Dear seyedrauf🌹 thanks for comment❤
The use of a voltage divider with four series resistors of 100 ohms can be a good or bad choice depending on the specific application and requirements.
A voltage divider is a simple and commonly used circuit that can be used to obtain a lower voltage from a higher voltage source. The voltage divider circuit using four series resistors of 100 ohms can be a good choice if the input voltage is relatively constant, the output voltage is not required to be very precise, and the load impedance is relatively high.
However, there are some potential issues with using a voltage divider for certain applications. One of the main issues is that the output voltage of a voltage divider circuit may vary with changes in the load impedance. The output voltage may also be affected by changes in the input voltage, temperature, and other factors. Additionally, the voltage drop across each resistor in the voltage divider circuit can generate heat, which can be a concern in high-power applications.
In summary, the use of a voltage divider with four series resistors of 100 ohms can be a good or bad choice depending on the specific application and requirements.🌹
Excellent can you split voltages from one power source challenging it equally to other devices
@@electrofixtips thanks, I was looking at an AC distribution. Of splitting 3000volts to different distribution boards with max of 100 amps per board so with the formula resistance can be calculated. Thanks
RESISTOR VOLTAGE DIVIDER WOW
Your feedback is highly appreciated. Thank you for your comment
Is it possible to reduce the voltage with a series diode?
Yes, it is possible to reduce the voltage with a series diode. However, it is not a very efficient way to do it, and it is not recommended for most applications.
When a diode is forward biased, it has a voltage drop of about 0.6 volts for silicon diodes and 0.3 volts for germanium diodes. This means that if you connect a diode in series with a power supply, the voltage at the output of the diode will be reduced by the diode's forward voltage drop.
For example, if you connect a silicon diode in series with a 12 volt power supply, the voltage at the output of the diode will be about 11.4 volts. If you connect two silicon diodes in series, the voltage at the output will be about 10.8 volts, and so on.
The main problem with using a series diode to reduce voltage is that the diode's forward voltage drop is not constant. It varies depending on the current flowing through the diode. This means that the output voltage of the circuit will also vary depending on the current draw.
Another problem with using a series diode is that it wastes power. The diode's forward voltage drop is dissipated as heat. This means that the power supply has to provide more power than the circuit actually needs.
For these reasons, it is not recommended to use a series diode to reduce voltage for most applications. There are better ways to do it, such as using a voltage regulator or a resistor divider.
However, there are some cases where using a series diode to reduce voltage may be acceptable. For example, it may be used in a low power circuit where the power loss is not significant.
What are the colour code
We also can use diode. every diode can reduce 0.7 voltage
yes very good❤
please watching this video:
th-cam.com/video/dl6QpCajRgw/w-d-xo.html
Sir aap vdo me bda asani se dikha dete ho lekin fack
Jab 12v milega n ise to sab k sab jal jayega
An uninteligable tangle of wires with illegible meter readout digits to anyone who doesn't yet understand what is going on I'm afraid.
A simple sketch with explanation would be far better!
Thanks for the feedback! I appreciate you taking the time to point that out🌹
Kalo bisa lebih detai mase
Dear kuku 🌹To create a voltage divider using four resistors in series, each with a resistance of 100 ohms, you can follow these steps:
1. Connect the resistors in series: Connect the four resistors end to end, so that the current flows through them one after another.
2. Identify the input and output: Determine which end of the resistor chain will be the input and which will be the output. The input will be the end where you apply the input voltage, and the output will be the end from which you measure the divided voltage.
3. Calculate the total resistance: To find the total resistance, add up the resistance values of all the resistors in series. In this case, since you have four resistors of 100 ohms each, the total resistance (R_total) will be 4 * 100 ohms = 400 ohms.
4. Apply the input voltage: Connect the input voltage source (V_in) to the input end of the resistor chain.
5. Calculate the output voltage: The output voltage (V_out) can be calculated using the voltage divider formula:
V_out = (R2 / (R1 + R2)) * V_in
In this case, since you have four resistors in series, you can consider the first three resistors as R1, and the last resistor as R2. So, R1 = 300 ohms and R2 = 100 ohms. The input voltage (V_in) will be the voltage you apply at the input end.
V_out = (100 ohms / (300 ohms + 100 ohms)) * V_in
= (100 ohms / 400 ohms) * V_in
= (1/4) * V_in
Therefore, the output voltage will be one-fourth (1/4) of the input voltage.
6. Measure the output voltage: Connect a voltmeter between the output end of the resistor chain and the common ground to measure the output voltage (V_out).
Please note that in this voltage divider configuration, the output voltage will be one-fourth of the input voltage regardless of the magnitude of the input voltage, as long as the resistors remain the same.
Por favor explicalo en castellano , gracias de Chile 6:22
Reducción de voltaje con resistencia
Mediante 4 resistencias de 100 ohmios y voltaje de entrada de 12 voltios, crea voltajes de aproximadamente 3, 6 y 9 voltios
En este video se usan 4 voltímetros simultáneamente
Compare instantáneamente el voltaje de entrada con otros 3 voltajes
resistencia 👉 100 ohmios *4
cable y voltaje variable de entrada
using dioda you can so
Und was bringt mir dieses Video? Ich weiß wie groß die Widerstände sind, das hier ein mehrfach Spannungsteiler entstanden ist, ich weiß auch welche Eingangsspannung angelegt wurde aber ich weiß nicht welche Sröme fließen und ich weiß auch nicht an welchem Abgriff ich welchen Strom entnehmen kann. Einfach nur was zusammenlöten bringts doch nicht, da helfen auch keine braunen Hände mit abgefressenen Fingernägeln!
If power supply is 14 volt how to get 12.6 v
@@electrofixtips wo sahi ha values kn si ho ghi resistance ki
Mas.... apa tahan sama Amper besar resistor nya...😅😅
Dear ahmadkos 🌹Suitable for low amps
Translate in Tamil
but, the current (A) decreased
@@electrofixtips Thanks so much for your reply... I meant TOTAL current
Demasiado desorden en el vídeo,lo más interesante es lo que menos se ve, debes ser más pulcro al grabar un vídeo.
Dear diogen, thank you for your criticism🌹❤
Waste
Bakvas😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅
Dear kasam 🌹 thanks for comment
Có cái D gì hay 😮
What benefit of this