How to distinguish resistors, capacitors and inductors with the same color ring when placed together?

　　How to distinguish the color ring resistor and color ring inductor when they are put together:

　　When the color ring inductor and the color ring resistor are put together, the two are very similar, and those who are not careful will mistake them for each other. In fact, if you put the two together and compare the prices carefully, there are still differences. The following briefly introduces three differences!

　　1. Color: This type of inductor is usually green, and the resistor is usually blue or beige.

　　2. Appearance: The thickness of the two ends of the inductor is similar to that of the middle, and the connection wires at both ends gradually become thinner. The resistor is like a dog-gnawing bone, big at both ends and thin in the middle, and the connection wires are not as sharp as the inductor.

　　In addition, the inductor should be thicker than the ordinary resistor of the same length.

　　3. When measuring with a multimeter, the inductance is usually close to a few ohms, while ordinary resistors generally do not have such small values, and are basically more than a few hundred (except for low-resistance resistors)

　　The reading method of this inductor is the same as that of the ordinary color ring resistor. The distances between the color rings at both ends and the edge are different! You can tell which one to read first. The reading value will definitely be different from the resistance value of this color ring. You can just measure it with a multimeter.

　　The following table shows the readings of the inductance of the color ring inductor:

　　Silver, gold, black, brown, red, orange, yellow, green, blue, purple, gray, white, none

　　You can refer to this table one by one to read the four-ring resistor: the first two digits are significant digits, the third digit is the multiplier, and the fourth digit is the error level.

　　How to identify color ring resistors and capacitors:

　　Black, brown, red, orange, yellow, green, blue, purple, grey and white represent 0 to 9 respectively.

　　4. Color ring resistor:

　　The first color ring is the tens digit, and the second color ring is the ones digit.

　　The third color ring is the multiplier, and the fourth color ring is the error rate

　　5. Color ring resistor:

　　The first color ring is the hundreds digit, and the second color ring is the tens digit.

　　The third color ring is the single digit, and the fourth color ring is the multiple to be multiplied.

　　The fifth color ring is the error rate.

　　There is also a five-color ring resistor. This type of resistor has relatively small resistance and relatively high precision. Since it is also used in computer peripherals, I will introduce it as well:

　　The second to last ring is gold or silver, and the first three color rings are hundreds, tens, and ones, respectively. The last color ring is the error value. The specific resistance of such a resistor is the three-digit number represented by the first three color rings multiplied by 10 to the negative 1st or negative 2nd power of ohms. For example, the resistance of a resistor marked with brown, purple, green, silver, and brown rings is 1.75Ω.

　　For example: the colors of the 5-color ring resistor are red-red-black-black-brown.

　　Then its resistance is 220& TI mes;1 = 220 Ω, with an error of ±1 %

　　Commonly used capacitors are:

　　1. Dielectric capacitor: Most of them are above 1μF and are directly expressed in numbers, such as 4.7μF, 100μF, 220μF, etc. The two poles of this capacitor are positive and negative, and the longer leg is the positive pole.

　　2. Ceramic chip capacitors: Most are below 1μF and are directly expressed in numbers. For example: 10, 22, 0.047, 0.1, etc. What needs attention here is the unit. For those expressed in integers, the default unit is pF; for those expressed in decimals, the default unit is μF. For example, in the above example, they are 10P, 22P, 0.047μF, 0.1μF, etc.

　　3. Apply the "color ring representation" to capacitors: This is another clever interpretation! We often see such marks on some ceramic capacitors: "103", "104", "473", etc. Here, the third digit (the unit digit) is not the unit digit commonly understood. It is the same as the third ring of the four-color ring resistor, telling people the "number of zeros added" after the first two digits; in this way, 103 is 10000, 104 is 100000, 473 is 47000, and the default unit is pF. Conversion, 103 = 0.01uF, 104 = 0.1uF, 473 = 0.047uF.