Electrical Engineering - Ohm's Law - Discussion
Discussion Forum : Ohm's Law - General Questions (Q.No. 4)
4.
A resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange, orange, silver?
Discussion:
79 comments Page 4 of 8.
Rajpriya said:
1 decade ago
B-Black-0
B-Brown-1
R-Red- 2
O-Orange-3
Y-Yellow-4
G-green-5
B-Blue- 6
V-Violet-7
G-Green-8
W-White-9
Silver--- 10%
Gold --- 20%
B-Brown-1
R-Red- 2
O-Orange-3
Y-Yellow-4
G-green-5
B-Blue- 6
V-Violet-7
G-Green-8
W-White-9
Silver--- 10%
Gold --- 20%
Mahesh kumar k said:
9 years ago
Good explanation. Thanking you all.
I want to know easy method to remember the colour coding. Can anyone help me?
I want to know easy method to remember the colour coding. Can anyone help me?
Anand said:
1 decade ago
Red-3,orange-4,orange-4,silver=10% of Resistance color code,
344/10=34.4,
According to ohm's law I=V/R=50/34.4=2.2
344/10=34.4,
According to ohm's law I=V/R=50/34.4=2.2
Priyaaru said:
1 decade ago
resistance = 23* (10)^3 (+ or -)10 = 23010 or 22990
current = ( voltage / resistance)= (50 / 23010)= 2.2 mA
current = ( voltage / resistance)= (50 / 23010)= 2.2 mA
Tushar singhal said:
1 decade ago
I'm not satisfy with priyaaru ans. because 23*(10)^3(+or-)10% means 23000(+or-)10% means 23000(+or-)2300.
Elsadig said:
9 years ago
Good job.
But I still have the question.
Green = 5.
Green = 8.
Which is right and why we use 2 values?
But I still have the question.
Green = 5.
Green = 8.
Which is right and why we use 2 values?
Shruthi said:
1 decade ago
V=50 V, I=?
R = red, orange, orange, silver i.e. 23x10^3 = 23 k.
I = V/R.
= 50/23000.
= 2.17 mA.
R = red, orange, orange, silver i.e. 23x10^3 = 23 k.
I = V/R.
= 50/23000.
= 2.17 mA.
Mehtab Satti said:
7 years ago
Why are we not including tolerance (silver, gold) in our calculations here? Please explain.
(3)
Geeta H said:
3 years ago
Red 2.
Orange 3.
Orange 10^3.
Silver +/- 10%.
23000 +/- 2300.
20700/25300.
Ans is +2.4m.
Orange 3.
Orange 10^3.
Silver +/- 10%.
23000 +/- 2300.
20700/25300.
Ans is +2.4m.
(6)
JAVARIA said:
9 years ago
Marvelous explanation. I am really much satisfied from this explanation. Thank you to all.
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