**BBC GCSE Bitesize Resistors**

To find out the resistance of the whole circuit , we can't just add together the resistors as we did in the series circuit, we have to apply Ohm's law to each branch of …... This article describes a systematic way to simplify a circuit, using this example, We have a voltage source connected to a resistor network. The two small circles at the left end represent the ports of the resistor network. Let's say we want to figure out the current demand placed on the voltage source by the resistor network. The answer is not immediately obvious. But, we have some tools at

**Electronics/Resistors Wikibooks open books for an open**

To find the voltage drop for any one of the resistors, use Ohm's Law again, V=I*R, using the resistance of the resistor you want. Sciencing Video Vault Resistors in Parallel... Repeat this iteration of increasing the LED current / reducing the resistor value until you find the minimum LED current that's useable for you (i.e. bright enough to see) and go with it. Also make sure your resistor is sized appropriately. (Using a fixed resistor once you settle on a value will be more reliable then leaving a potentiometer in the circuit.)

**Electronics/Resistors Wikibooks open books for an open**

7/04/2017 · Trying to find out how to calculate the resistors R2, R3, and seen this type of circuit used several times in electret mic preamps, and why they use it?...... In this way a large number of parallel resistors can be worked out using product over sum. When all the parallel resistors are the same value. If a number of identical parallel resistors are connected, the total resistance will be the resistor value multiplied by the reciprocal of the number of resistors.

**Electronics/Resistors Wikibooks open books for an open**

10/08/2009 · Best Answer: Ohm's law is what you need to work out ANY voltage/ current/ resistance problems. Ohm's basic law is E = IR. E is voltage in volts; I is current, in amperes; R is resistance, in ohms. To work out a resistance for a LED, you need first, the LED's specifications. You need the operating voltage... Using Analog multimeter to test the Resistor First you must know the resistor value before you take any measurement. Assuming you are measuring a resistor with the color of – yellow, purple, black and gold -from the calculation it is a 47 ohms resistor with 5% tolerance.

## How To Find Out Which Resistor To Use

### What is the Function of a Resistor? Functions Explained

- BBC GCSE Bitesize Resistors
- BBC GCSE Bitesize Resistors
- How to use a resistor YouTube
- What is the Function of a Resistor? Functions Explained

## How To Find Out Which Resistor To Use

### Using Analog multimeter to test the Resistor First you must know the resistor value before you take any measurement. Assuming you are measuring a resistor with the color of – yellow, purple, black and gold -from the calculation it is a 47 ohms resistor with 5% tolerance.

- 26/06/2018 · If you know the circuit's total current and voltage, you can use Ohm's Law R = V/I to find the total resistance, then the formula for resistors in parallel to solve for the missing resistor …
- To find the voltage drop for any one of the resistors, use Ohm's Law again, V=I*R, using the resistance of the resistor you want. Sciencing Video Vault Resistors in Parallel
- To find out the resistance of the whole circuit , we can't just add together the resistors as we did in the series circuit, we have to apply Ohm's law to each branch of …
- You use this color code to figure out the nominal value and tolerance of a standard resistor. Decoding the nominal value of a resistor. Here’s how you use the color code to figure out the nominal value of the resistor (refer to the figure): Decide which band is the first band. Compare the ends of the resistor. Usually, the colored band at one end is closer to that end than is the colored

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