Electrical Engineering - Voltage, Current and Resistance - Discussion
Discussion Forum : Voltage, Current and Resistance - General Questions (Q.No. 23)
23.
A red, red, orange, gold resistor has a nominal value of
22,000 
2,200
22
2.2
Discussion:
18 comments Page 1 of 2.
Saran said:
8 years ago
Nominal value means nothing if our resistor value 3 digits means tolerance value 5 % , 4 digits means tolerance value 1%.
Red-2,red -2,orange 10^3,
=22*10^3,
=22000.
Nominal value is 1% ,bcoz resistor value is 4 digits.
The resistor value is 22000.
Red-2,red -2,orange 10^3,
=22*10^3,
=22000.
Nominal value is 1% ,bcoz resistor value is 4 digits.
The resistor value is 22000.
(1)
Meera said:
1 decade ago
By using colour codes, we can calculate the resistance value without multimeter and colour code is the best choice to calculate resistance.
Parth said:
8 years ago
(First color code * 10 + Second color code) * 10^(Third color code) +/- (gold[5%] / silver[10%] / no color[20%]).
Latha said:
1 decade ago
No its not 10% gold is 5%. why is it called as nominal value? Does it mean v shud not consider the tolerance??
Hafeez said:
7 years ago
Red ---- Red ---- Orange ---- gold.
2 ---- 2 ---- 3 zeros ---- 5% tolerance.
So,
22000 +-5%.
Ans= 22000.
2 ---- 2 ---- 3 zeros ---- 5% tolerance.
So,
22000 +-5%.
Ans= 22000.
Sandeep said:
1 decade ago
Sorry I did not understand how the answer came. Please can any one give me correct explanation.
Murugaperumal said:
1 decade ago
red =2
red =2
0range =10^3
gold =10%
so value=22,000 ± 10%
red =2
0range =10^3
gold =10%
so value=22,000 ± 10%
Anmol verma said:
8 years ago
Explain more about nominal value of different colours and also equate it.
Rekha said:
1 decade ago
Why to use the colour code only for resistance? please anybody explain.
Aditya said:
10 years ago
Yes if anybody knows the formula to calculate please post here.
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