Those bands tell you the value of the resistor. Before you can decode the resistor value, you need to know a little more about resistors. There are two main types of resistors: Standard resistors have four color bands. Three of the bands tell you the nominal value, which means the value...
Calculate the total resistance of the circuit, or Rt. Rt depends on the number of resistors and how they are connected. If one resistor exist, Rt is the value of that resistor. If several resistors exist, determine if they are connected in series or parallel and use the following formula:...
Take a look at a circuit board and chances are you’re going to find a resistor or two. Most boards today use surface-mount device (SMD) technology, so the components are almost too small to see sometimes, but they are on there, I promise. How do engineers decide which resistors to u...
“Color coding”is used in electronics to identify between different components. In the case of resistors, color coding is used to identify a specific resistance value, for example, a 100 ohms resistor or a 1-kilo ohms resistor with 5% tolerance.Electronic components like resistorsare very small...
Higher precision resistors have tighter tolerances printed on them. For example, a gold band means the actual resistance should be within ±5% of the marked value. So a 100 Ω± 5% resistor can have an actual resistance between 95 to 105 Ω. Tolerance gives the acceptable margin of error. ...
DC to AC converters for cars are devices that allow a car to run on AC power. They are used to conve
Quite a few switching regulators are set for a certain voltage output, but most of them aren’t, and they will want you to add a resistor divider to know what to output. There’s usually a formula for resistor divider calculation, so, pick a common resistor value, put it in as one ...
If the Vbus=0.75V and current is 1A, the R shunt is 0.005 ohm and then the V shunt value is 5 mV ? Is it right ? How can I find the register value to verify the V shunt value ? If the current is 500mA, then I need to adjust the R shunt value to 0.01 o...
What Is a Load? This is the device connected to a voltage source. It could be a motor, bulb, heater, LED, or an electronic resistor. What Are Watts? Power is the rate at which energy is consumed by a load and is measured in watts. A kilowatt is 1000 watts, also abbreviated to kW...
Using a multimeter like this one, you can automatically find the resistance of an electronic component; the meter feeds a known current through the component, measures the voltage across it, and uses Ohm's law to calculate the resistance. Although multimeters are reasonably accurate, you have to...