What is 3E3 resistor?
3E3 = 3R3 = 3.3 ohms.
How do you calculate a resistor?
To calculate the total overall resistance of a number of resistors connected in this way you add up the individual resistances. This is done using the following formula: Rtotal = R1 + R2 +R3 and so on. Example: To calculate the total resistance for these three resistors in series.
What does E mean in resistance?
E = I x R. When spelled out, it means voltage = current x resistance, or volts = amps x ohms, or V = A x Ω. Named for German physicist Georg Ohm (1789-1854), Ohm’s Law addresses the key quantities at work in circuits: Quantity. Ohm’s Law.
How do you calculate resistor color code?
In six band resistor color code, the first three bands denote the resistance values, 1-multiplier band, 1-tolerance band & 1-temperature coefficient value. The formula for the three-band resistor color code is – 1st digit. 2nd digit. third digit x Multiplier = 1.0.
How do you calculate the resistance of a resistor?
To calculate the resistance value, you need to group the values of the significant digits bands — i.e., the values of the first two or three bands from the left, depending on the total number of bands. Then you need to multiply that value by the multiplier to get the resistance value of the resistor.
What is Watts law formula?
Watt’s Law states that: Power (in Watts) = Voltage (in Volts) x Current (in Amps) P = V I Combining with Ohm’s law we get two other useful forms: P = V*V / R and P = I*I*R Power is a measurement of the amount of work that can be done with the circuit, such as turning a motor or lighiting a light bulb.
How do you find the resistance of a resistor in series?
This is done by adding up the individual values of each component in series. In this example we have three resistors. To calculate the total resistance we use the formula: RT = R1 + R2 + R3.
How do you calculate tolerance and resistance?
Tolerance Band For example: A 220 Ω resistor has a silver tolerance band. Tolerance = value of resistor x value of tolerance band = 220 Ω x 10% = 22 Ω 220 Ω stated resistance +/- 22 Ω tolerance means that the resistor could range in actual value from as much as 242 Ω to as little as 198 Ω.
Calculating To calculate the resistance value, you need to group the values of the significant digits bands — i.e., the values of the first two or three bands from the left, depending on the total number of bands. Then you need to multiply that value by the multiplier to get the resistance value of the resistor.
How does the second mode work in a resistor calculator?
In contrast, the second mode allows you to set the desired total resistance of the bunch and calculate the one missing resistor value, given the rest. To keep it simple, we only show you a few rows to input numbers, but new fields will magically appear as you need them.
What makes a 6 th band in a resistor?
On the most precise of resistors, a 6 th band may be present. The first three bands would be the significant figure bands, the 4 th the multiplier, the 5 th the tolerance, and the 6 th could be either reliability or temperature coefficient.
How are color codes used in resistor calculator?
Electronic color codes are also used to rate capacitors, inductors, diodes, and other electronic components, but are most typically used for resistors. Only resistors are addressed by this calculator.