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A voltage divider needs two resistors to create a precise and stable output voltage. The output voltage is determined by the ratio of the two resistors, ensuring it remains consistent regardless of the load. Using just one resistor would result in unstable and inaccurate voltage due to load variations.

Using just one resistor would be imprecise and unstable because the voltage would vary with the load, depending on how much current the load draws.

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Sure! Start with the voltage divider equation: Vout=Vin×R2/R1+R2​​. Rearrange to isolate R2​: Multiply both sides by R1+R2 and then by 1/Vin​ to get Vout/Vin=R2/R1+R2 Solve for R2​: After some algebraic manipulation, you should arrive at R2=Vout×R1/Vin−Vout

Great suggestion! We are planning a future video on the LC oscillator circuit. Thank you for watching!

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Thank you! Will do!

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Thank you for the insightful feedback!

Thank you for your feedback! You're right; in conductive materials, electrons move at drift speeds, which are indeed quite slow. The video aimed to simplify the concept for easier understanding. Veritasium and many textbooks offer deeper insights. I appreciate your input and will strive for more precision in future videos!

Thank you for pointing that out! You're absolutely right. Faraday's Law of Electromagnetic Induction does introduce an exception where a changing magnetic field can induce a voltage in a loop. For the sake of simplicity and focus, this video predominantly addresses scenarios without magnetic field considerations. However, it's crucial for anyone diving deeper into circuit theory to understand this nuance. We'll keep this feedback in mind for future content. Appreciate your keen observation!

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Thank you for the insight! You're right; analogies often simplify complex topics. Diving deep into voltage using foundational units is a great idea. We'll consider this for future content :)

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Thanks for your feedback! We use conventional current (positive to negative) as it's a widely accepted standard in electrical engineering and education. While electron flow is from negative to positive, conventional current provides a consistent approach for circuit analysis. In advanced electronics, electron flow nuances are crucial. But for the "Inductor Basics" topic, the conventional approach aligns with many educational standards and avoids confusion. Appreciate your insightful question!

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Correct me if I'm wrong, but can DC current also change in magnitude?

Indeed, you're right. DC current can change in magnitude, but when we refer to 'DC', we usually mean a constant, unchanging value. It's when DC is first applied or removed (transient states) that you might see changes in current magnitude, during which an inductor would still resist that change. But once the DC current stabilizes, the voltage across an ideal inductor becomes zero @@palmshade1489

Thank you for pointing that out! You're absolutely right. The direction in which we reference the current plays a crucial role in the resulting equation. Our video aimed to simplify the concept for easier understanding, but in practical circuit analysis, considering both scenarios, as you mentioned, is essential. We appreciate your feedback ensuring accurate information. Stay tuned for more in-depth discussions and keep those insightful comments coming!

Thanks for the suggestion! We'll consider diving into Icap = C * dV/d​ in a future video. Stay tuned!

Agreed!

Yes please, I'm looking for a similar video

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Thank you. Glad you enjoyed it!

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Yes I like how he explains this too

We hope to tackle this in a future video. Thanks for watching!

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Welcome!

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Hi, in that case, the parallel resistance would be equal to 1 Ohm. Therefore, the Vout will be around 1.7 V, instead of the desired 3 V

Can you make a similar video about capacitors please

Can you explain why current lags in an inductor?

Hi, Yes we are working on a video about capacitor voltage and current. Stay tuned! @@Miketrack101

When voltage is applied to an inductor, it creates a changing magnetic field. This changing field induces a voltage that opposes the original change in current (due to Lenz's law). As a result, the current doesn't instantly rise to its maximum value but gradually increases, causing it to "lag" behind the voltage. In essence, the inductor resists sudden changes in current, leading to this lagging behavior@@AnastasiaGrot

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Voltage: It's the potential difference between two points. It can exist between any two points in a circuit due to components like resistors, capacitors, etc., or even just the geometry of the wires. It represents the energy per unit charge. EMF: Electromotive force, or EMF, is a bit of a misnomer as it's not actually a force. It refers to the voltage generated by an energy source, like a battery or a generator. It's the energy supplied per unit charge that comes from some type of energy transformation (chemical to electrical in batteries, kinetic to electrical in generators).