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 2 of 8.
Lavanya said:
1 decade ago
Resistor values can be known by colour band.
0 black
1 blue
2 red
3 orange
4 yellow
5 green
6 blue
7 violet
8 grey
9 white
Resistor value is given by 1st 3 bands.
Start from left most band,3rd value is a power of 10..
Ans: red(2),orange(3),orange(10^3).. so value becoms 23*10^3
0 black
1 blue
2 red
3 orange
4 yellow
5 green
6 blue
7 violet
8 grey
9 white
Resistor value is given by 1st 3 bands.
Start from left most band,3rd value is a power of 10..
Ans: red(2),orange(3),orange(10^3).. so value becoms 23*10^3
Vinay said:
1 decade ago
"BBROY went to Great Britain to get Very Good Wife with Gold and Silver" ya its crct memorize it its also find out by ulta alta method like
red col-our code is 2 and orange colour code is 3 so (5\23) u will get ans 0.217 u get ans 2.2 like that k guys
red col-our code is 2 and orange colour code is 3 so (5\23) u will get ans 0.217 u get ans 2.2 like that k guys
Rathi said:
1 decade ago
We can get Resistance value from the color code (red, orange, orange, silver) is 23 (10^3) = 23000.
Here we are not consider the last color (tolerance-silver) , Because here not asking minimum or maximum current.
So current I = V/R = 50/23000 = 0.00217 = 2.2mA.
Here we are not consider the last color (tolerance-silver) , Because here not asking minimum or maximum current.
So current I = V/R = 50/23000 = 0.00217 = 2.2mA.
Ramu 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%
RESISTOR color code same as-above "Big Boys Race our Young girls But Violet Generally wins"
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%
RESISTOR color code same as-above "Big Boys Race our Young girls But Violet Generally wins"
Akasha said:
4 years ago
Red = 2.
Orange = 3.
Multiplier = 10^3(Orange).
Silver= 10 (Don't Consider Silver because they not given at Maximum Or Minimum Resistance).
Then, 23*10^3.
23000Ohms.
Current = V/R.
= 50/23000
= 0.002173
= 2.17mA Nearly 2.2mA.
Orange = 3.
Multiplier = 10^3(Orange).
Silver= 10 (Don't Consider Silver because they not given at Maximum Or Minimum Resistance).
Then, 23*10^3.
23000Ohms.
Current = V/R.
= 50/23000
= 0.002173
= 2.17mA Nearly 2.2mA.
(35)
YOGESWARAN said:
1 decade ago
Here we can easyly memorize the colour code by using following sentence:.
B B ROY GREAT BRITAN VERY GOOD WIFE (silver, gold colours are no need to memorize, because first three colours enough to calculate value of resister).
B B ROY GREAT BRITAN VERY GOOD WIFE (silver, gold colours are no need to memorize, because first three colours enough to calculate value of resister).
Abhishek John said:
1 decade ago
First Band Red = 2.
Second Band Orange = 3.
(Repeat) Multiplier Band Orange = 10*^3 or 1000.
Silver = +/-10%.
Total = 23000*(+/-10%).
I = V/R.
I = 50/23000A.
I = 0.00217A.
I = 2.17mA - Answer.
Or 2.2mA.
Second Band Orange = 3.
(Repeat) Multiplier Band Orange = 10*^3 or 1000.
Silver = +/-10%.
Total = 23000*(+/-10%).
I = V/R.
I = 50/23000A.
I = 0.00217A.
I = 2.17mA - Answer.
Or 2.2mA.
Md Sadruddin Ansari said:
1 decade ago
First Band, Red = 2.
Second Band, Orange = 3.
Multiplier Band, Orange = 10^3.
Tolerance Band, Silver = +or-10%.
Equation: 23*10^3 +or-10%.
I = V/R.
= 50/23*10^3.
= 50*10^-3/23.
=2.17*10^-3 A.
=2.2 mA.
Second Band, Orange = 3.
Multiplier Band, Orange = 10^3.
Tolerance Band, Silver = +or-10%.
Equation: 23*10^3 +or-10%.
I = V/R.
= 50/23*10^3.
= 50*10^-3/23.
=2.17*10^-3 A.
=2.2 mA.
Gaurav said:
1 decade ago
U can understand it fom dis tagline
BB ROY GREAT BRITAIN VERY GOOG WIFe
So WE HAVE
B=BLACK 0
B=BROWN 1
R=RED 2
O=ORANGE 3
Y=YELLOW 4
G=GREEN 5
B=BLUE 6
V=VOPLET 7
G=GRAY 8
W=WHITE 9
SILVER= +/-10%
GOLD +/-5%
BB ROY GREAT BRITAIN VERY GOOG WIFe
So WE HAVE
B=BLACK 0
B=BROWN 1
R=RED 2
O=ORANGE 3
Y=YELLOW 4
G=GREEN 5
B=BLUE 6
V=VOPLET 7
G=GRAY 8
W=WHITE 9
SILVER= +/-10%
GOLD +/-5%
Prakash pritam said:
9 years ago
I think in this question we are assuming the minimum value of resistance, Hence the value of resistance is 23 * 10^3 - 10% = 22.7 * 10^3,
Now, V/R = I,
=> 50/22.7 * 10^3 = 2.20 mA.
Now, V/R = I,
=> 50/22.7 * 10^3 = 2.20 mA.
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