Electrical Engineering - Voltage, Current and Resistance - Discussion
Discussion Forum : Voltage, Current and Resistance - General Questions (Q.No. 5)
5.
The maximum resistance value for a brown, red, yellow, gold resistor is
126,000 
126,600
114,000
132,000
Discussion:
45 comments Page 4 of 5.
Aditya yadav said:
1 decade ago
Please tell me about colour coding of resistances and how to calculate the values of RES ?
Parveen said:
1 decade ago
Because we are not know the value of RES without multimeter or ohm meter so colour is best option.
Rekha said:
1 decade ago
Why are the resistance have a colour code ?
Sukh said:
1 decade ago
120000*5/100=6000+120000=1260000
GIRIRAJ said:
1 decade ago
Formula for finding resistance is
for finding max value=(ABx10^C)+T%
for finding min value=(ABx10^C)-T%
where A= 1st band colour
B= 2nd band colour
C= 3rd band colour
T= 4th band colour (tolerance)
here in this question
Brown =1
red =2
yellow=4
Gold =5%
So acc... to formula
(ABx10^C)+T%
(12x10^4)+5%
we get 120000+((120000*5)/100)
So answer is 120000+6000 =126000 ohm
for finding max value=(ABx10^C)+T%
for finding min value=(ABx10^C)-T%
where A= 1st band colour
B= 2nd band colour
C= 3rd band colour
T= 4th band colour (tolerance)
here in this question
Brown =1
red =2
yellow=4
Gold =5%
So acc... to formula
(ABx10^C)+T%
(12x10^4)+5%
we get 120000+((120000*5)/100)
So answer is 120000+6000 =126000 ohm
(1)
Ramesh said:
1 decade ago
According resistance value codification
Brown =1 red=2 yellow=4 Gold=5%
the value of resistance 120000ohm =120000/1000=120K
but here maximum value refers to 126,000
Brown =1 red=2 yellow=4 Gold=5%
the value of resistance 120000ohm =120000/1000=120K
but here maximum value refers to 126,000
Kumar said:
1 decade ago
@Anitha
Do know how to percentage calculations ?
5% means 5/100(120000)= 6000. Okay.
Do know how to percentage calculations ?
5% means 5/100(120000)= 6000. Okay.
Anitha said:
1 decade ago
The actual value is 120000. In this gold tolerence is +-5% thus 5* (120000/100) =60000 !
Shailaja said:
1 decade ago
What is 6000? how it comes any explain please.
Siva said:
1 decade ago
Answer is right.
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