# Tagged Questions

A well known relationship that describes the relationship between Voltage and current through a device's resistance expressed mathematically as V= IR. This formula says that voltage across the device is equal to the current through the device multiplied by the resistance.

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### How do I calculate the necessary resistance for a voltage divider?

I’m self-taught, and this is a little bit of a thought experiment for me to understand Ohm’s Law better. I have a very simple voltage divider. Given a 15V DC input, each of three 4.7KΩ resistors ...
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### Calculate expected voltage around a resistor [duplicate]

It's been a few years since I first studied the Ohm's law at school. Now I'm really getting into electronics, and I must admit a part of it still puzzles me. I know this is kind of a strange ...
271 views

### LED current limiting resistor and Ohm's Law

Yesterday I was trying to figure out how many ohms of resistor should I be using for my LED, and found this post right here in the forum. The formula states that one should subtract the voltage drop ...
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### What should the values of resistors R1-R6 be in order to get desired voltage pulse specified in Allegro A1362's data sheet?

I am trying to program sensitivity and offset of the A1362 Hall-Effect Sensor by sending the following voltage pulses VpH - Voltage High - 27 Volts VpM - Voltage Mid - 15 Volts VpL - Voltage Low - 3 ...