How to read a resistor color code

How to read a resistor color code


  1. Position the resistor with the gold or silver ribbon to the right.
  2. Read off the color sequence that needs to be decoded to determine the resistance.
  3. Find the coded number for the resistor value.
  4. Determine the tolerance of the resistor.
  5. Find the decoded number for the resistor value.

Also, what colors are resistors?

Components and wires are color-coded to identify their value and function. The colors Brown, Red, green, blue,, and purple are only used as tolerance codes for 5-band resistors. All 5-band resistors use a colored tolerance band.

What is a Resistor Color Code?

An electronic one Color code used to indicate the values ​​or ratings of electronic components, usually for Resistances, but also for capacitors, inductors, diodes and others. A separate one code, the 25-pair Color code, is used to identify wires in some telecommunications cables.

How can we calculate the tolerance value of resistors?

the tolerance Ribbon is silver so let’s multiply ours resistance by 0.1. That means our Resistance The value can be up to 16.5 or up to 13.5. For the third resistance, we carry the calculation in an alternative way. Take the face value and multiply it by 1 + yours tolerancewhich is (1 + 0.1).

What is the color code for a 100 ohm resistor?

100R / 100 ohm resistor color code

worth 100
Type 4-band color code system
Color code Brown, black, brown, gold
multiplier Brown, 10
tolerance Gold band ± 5%

What is the color code for a 10 ohm resistor?

10R / 10 ohm resistor color code

worth 10
Type 4-band color code
Color code Brown, black, black, gold
multiplier Black, 1
tolerance Gold band ± 5%

What is a resistance made of?

Resistance Composition. Resistors can be made from a variety of materials. Most modern resistors are made of either a carbon, metal, or metal oxide film. There is a thin film in these resistors conductive (although still resistive) material is wrapped in a helix and covered with an insulating material.

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What is the color code for a 100k ohm resistor?

100k / 100k ohm resistor color code

worth 100 kΩ
Type 4-band color code system
Color code Brown, black, yellow, gold
multiplier Yellow, 10000
tolerance Gold band ± 5%

How do you read a capacitor?

Method 2 Reading codes for compact capacitors

  1. Write down the first two digits of the capacity.
  2. Use the third digit as a zero multiplier.
  3. Calculate the capacity units from the context.
  4. Instead, read codes that contain letters.
  5. Read the tolerance code on ceramic capacitors.
  6. Read the letter-number-letter tolerance values.

Why are some resistors blue?

The beige body of a resistance is often an indication that its tolerance is 5%, while a blue– colored body often indicates a tolerance of 1% or 2%. the blue-physically Resistances and that dark brown resistance contain metal oxide film elements, while the beige ones Resistances and the green resistance Carbon film included.

What is the equivalent resistance in a parallel connection?

The voltage is the same on every component of the Parallel connection. The sum of the currents through each path is same to the total current flowing from the source. You will find a total of Resistance in a parallel circuit with the following formula: 1 / Rt = 1 / R1 + 1 / R2 + 1 / R3 +

What is the tolerance of a resistance?

tolerance is the percentage of error in the Resistance Resistance, or how much more or less you can expect a Resistance actually be measured resistance from its stated resistance. A gold tolerance Band is 5%tolerance, Silver is 10%, and no band would mean 20%. tolerance.” Source: resistance Color codes.

Do resistors have a polarity?

If I understand your question then yes – Resistances are reversible in the sense that they can be connected to the circuit in either direction. Resistances are not like diodes or capacitors. she to do not have one polarity. The conduction (or resistance) current is the same in both directions of current flow.

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Which side of the resistance do I read from?

Orient the resistance so you can read the stripes right. she should read the stripes from left to right. The first strip is the one that is closest to one end of the resistance. When that stripe is on the right Side of the resistance, turn the resistance around so that the first strip is on the left.

How do you check a resistance with a multimeter?


  1. Disconnect the circuit containing the resistor from the power supply.
  2. Isolate the resistor from the circuit.
  3. Check the resistance.
  4. Read the resistance value visually.
  5. Prepare a digital multimeter (DMM) to measure resistance.
  6. Measure the resistance.
  7. Determine the actual resistance value of the resistor.

What is the total equivalent resistance of the circuit?

More resistance means that less current flows through them Circuit. Equivalent resistance is another way of specifying ‘totalresistance, which we calculate differently for series and parallel connections. In a series Circuit, the various components are connected in a single, continuous loop.

What is the formula for electricity?

The resistance R in ohms (Ω) is equal to the voltage V in volts (V) divided by electricity I in amps (A): Because the electricity is determined by the values ​​of voltage and resistance, Ohm’s law formula can show that: If we increase the tension, the will electricity will rise.

What is the current formula?

Ohm’s law equation (formula): V = I × R and the power law equation (formula): P = I × V. P = power, I or J = Latin: Influare, international ampere or intensity and R = resistance. V = voltage, electrical potential difference Δ V or E = electromotive force (emf = voltage).

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How do you find the current?

the electricity can be taken from Ohm’s law, V = IR. The V is the battery voltage, so if R can be determined then that is electricity can be calculated. So the first step is to find the resistance of the wire: L is the length, 1.60 m.

What is the power unit?

the SI unit for measuring an electric current is the amp, that is the flow of electric charge across a surface at a rate of one coulomb per second. Electric current is measured with a device called an ammeter.

What is Ohm’s Law?

The potential difference (voltage) across an ideal conductor is proportional to the current through it. The constant of proportionality is referred to as the “resistance” R. Ohm’s law is given by: V = IR where V is the potential difference between two points that contain a resistor R.

What is Ohm’s Law?

Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage at the two points. More accurate, Ohm’s law states that in this relationship R is constant regardless of the current.

What is the KCL and KVL law?

Super fun circuit problem using KVL, KCL, and Ohm’s law to resolve ALL currents and voltages within a circuit! KVL is Kirchhoff’s law of stress. KCL is Kirchhoff’s current law.

How do you read the value of a resistor?


  1. Position the resistor with the gold or silver ribbon to the right.
  2. Read off the color sequence that needs to be decoded to determine the resistance.
  3. Find the coded number for the resistor value.
  4. Determine the tolerance of the resistor.
  5. Find the decoded number for the resistor value.