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ALL ABOUT ELECTRONICS. So, in the previous video, we have seen the

different types of resistors. Now, the value of this resistor is usually

defined using the color codes. And in fact, you might have observed the different

color bands painted on the resistor. So, now let’s find out in this video, how

to find the value of this resistor from this color codes. Now, the commercially available resistors

can have either 4, 5 or 6 bands. And depending upon the number of color bands,

these resistors are known as either 4-band, 5-band or 6-band resistors. So, now first of all, let’s find out how to

find the value of this 4-band resistors. So, if you see any 4-band resistor, then you

will find the 4 color bands. And out of the 4 color bands, the first 2

bands defines the first two digits of the value of the resistor. Then the third band defines the multiplying

factor for this resistor. And the fourth band defiens the tolerance

value for the resistor. Now, depending upon the color of this color

band, the value of this resistor will change. So, now let’s find out the relationship between

the color and the value that is represented by that particular color. So, here is the table which defines the relationship

between the different colors and the value that is represented by that particular color. So, as you can see over here, the first two

columns of this table defines the first two color band of this resistor. And depending upon the color of this color

bands, the value that is represented by these two digits will change. Similarly, the next two columns define the

multiplying factor as well as the tolerance value for this resistor. And depending upon the color of this color

bands these two parameters will also change. So, let’s take one example so that it will

get clear to you. So, here we have one 4 band resistor. And if you observe over here, the first two

color bands of this resistor are Red and Black respectively. So, this Red color band represents the value

of two, while this Black color band represents the value of zero. Similarly over here, the third color band

is of Green color. So, it represents the multiplying factor of

10 to the power 5. And the fourth band or the tolerance band

over is of Silver color. So, it represents the tolerance value of 10

percent. So, now if you combine all these four values,

then you will get the value of this resistor as 20 times 10 to the power 5. And with tolerance we can represent the value

of this resistor as 2 Mega Ohm plus-minus 10 percent of tolerance. So, in this way, using this color bands, we

can find the value of this resistor. So, let’s take one more example, and let’s

find out the value of the resistor for that given color band. So, if you observe this resistor, the first

two color band of this resistor are Brown and Black respectively. So, this Brown color bnad represents the value

of one. While the

Black color band represents the value of zero. Similarly over here, the third color band

is of Red color. So, it represents the multiplying factor of

10 to the power 2. While here the fourth band or the tolerance

band is of Gold color. So, it represents the tolerance value of 5

percent. So, let’s once again combine all these four

values and let’s find out the value of the resistor. So, if we combine all these four different

values, then the value of the resistor will be equal to 10 times 10 to the power 2 Ohm,

that is equal to 1 Kilo-Ohm. And if we include the tolerance then we can

say that the value of the resistor will be equal to 1 Kilo-Ohm plus-minus 5 percent. Now, sometimes in this four band ressitor

you might find that the fourth band or the tolerance band is missing. So, in that case, it represents the tolerance

value of 20 percent. So, for the given example, if the fourth band

is missing, the the value of the resistor R will be equal to 1 Kilo-Ohm. And because there is no tolerance band, it

represents the tolerance value of 20 percent. So, the value of the resistor R will be equal

to 1 Kilo-Ohm with the tolerance value of 20 percent. So, similarly now let’s find out, how to find the

value of the resistor in case when it has five color bands. So, in case of this 5- band resistor, the

first 3 color band defiens the first three digits of the value of the resistor. And the fourth band defines the multiplying

factor for this resistor. And the fifth band defines the tolerance value

for this resistor. So, here is the table for this 5-band ressitor

which defines the value of each digit as well as the multiplying factor and the tolerance

value depending upon the color of these color bands. So, let’s take one example of this 5-Band

resistor, and let’s find out the value of that 5- band resistor. So, here we have one 5-band resistor, and

for this 5-band resistor the first color band is of Red color. So, it defines the value of 2. Similarly, the second color band of this resistor

is of Black color. So, it defines the value of zero. And likewise, the third color band of this

resistor is of green color. So, it represents the value of 5. So, here the fourth color band is of Orange

color. and it defines the multiplying factor of 10

to the power 3. Now, the last band or the fifth band defines

the tolerance value for this resistor. And it is of Silver color. So, represents the tolerance value of 10 percent. So, if we combine all these different values,

then the total value of this resistor will be equal to 205 times 10 to the power 3. And with tolerance, we can say that the value

of this resistor R will be equal to 205 Kilo-Ohm, with tolerance value of 10 percent. So, in this way, we can find the value of

this resistor in case of this 5-band resistor. Now, usually these 5-band resistors are used

when we require the more accuarcy. So, similarly now let’s find out how to find

the value of the resistor in case it has 6 color bands. So, these 6-band resistors are not generally

used in general purpose applications. But they are used for specific applications

and in military applications. So, in this 6-band resistor, the first three

color band defines the first three digit of the value of the resistor. And then the fourth band represnts the multiplying

factor for this resistor. Then here the fifth band represents the tolerance

value for the resistor. And then the last color band defines the temperature

coefficient of resistance for the resistor. So, here is the table from which we can find

the value of the individual digits as well as the value of the multiplying factor. So, depending upon the color of the color

band, we can find teh value of the individual digits. And from the last two columns, we can find

the value of the tolerance as well as the temperature coefficient of the resistance

for the given resistor. So, let’s take one example and let’s find

out how to find the value of this 6 band resistor. So, here we have one 6-band resistor. And if you observe this resistor, here the

first band of this resistor is of Orange color. So, basically it defiens the value of 3. Then if we move to the next color band then

it is of Yellow color. So, it defines the value of 4. Likewise, the third color band over here is

of Green color. And it defines the value of 5. Now, if we move to the next color band, it

is of Brown color. And it defines the multiplying factor of 10. So, form this we can say that the value of

the resistor is equal to 345 into 10 to the power 1. So, if we move to the next color band, from

this we can find the value of the tolerance. And over here the fifth color band is of Violet

color. So, it represents the tolerance value of 0.1

percent. And then if we move to the last color band,

then it is of Brown color. So, it defines that the temperature coefficient

of resistance for the given resistor is 100 ppm /K .

So, now let’s combine the individual values and from this let’s find the value of the

resistor. So, if we combine all these values then we

can say that the value this resistor R is equal to 3.45 Kilo-Ohm with tolerance of 0.1 percent. And the temperature co-efficient of resistance

for the given resistor is 100 ppm /K. So, in this way, we can find the value of

the resistor in case it has 6 color bands. So, I hope in this video you understood how

to find the value of the resistor from the given color bands. So, if you have any questions or suggestions,

do let me know in the comment section below. If you like this video, hit the like button

and subscribe to the channel for more such videos.

The timestamps for the different topics covered in the video is given below:

0:50 4-Band Resistor Color Code (with Examples)

4:01 3-Band Resistor

4:31 5-Band Resistor Color Code (with Example)

6:25 6-Band Resistor Color Code (with Example)

Very good

👌👌

बहुत सरल और स्पष्ट उदाहरण .. इस तरह की एक आदर्श प्रस्तुति देने के लिए धन्यवाद!!

superbly explained

Tysm sir… It is really helpful for us.. Ty

excellent

Nice keep it up

Cool, thanks for going through this, if not used frequently it is easy to forget.

When 3 Band Color is Gold.

How to calculate the Resistance of the resistor?

Concise and accurate. Perfect.

Superb explanation! Thank you

Nice and precise explanation..

thanks

thanks bro

Super explaination sir thank uuu sooo much…

Thanks for helping me sir

It's Kelvin and not degree Kelvin. 😟