Electrical Engineering - Ohm's Law - Discussion

Thanks @Satish I m very clear colour code good explanation I understand better now but last orange not proper clear so please clear me last doubt.

If min or max. Current is not mentioned in the question. Last color is not considered. Is that right or not? please help me guys.

We have to add the tolerance or subtract?

Anyone please?

(Color) 1st and 2nd Significant Multiplier

B - black - 0 1 1
B - boys - 1 10 10
R - rape - 2 100 100
O - our - 3 1000 1K
Y - young - 4 10000 10K
G - girl - 5 100000 100K
B - but - 6 1000000 1M
V - violeta - 7 10000000 10M
G - give - 8 100000000 100M
W - willingly - 9 1000000000 1T
Silver- - - - - 10% <---- Tolerance
Gold- - - - - - 20% <---- Tolerance

Givent that data:
voltage source=50 V
we have to find out the resistance value:
according to COLOR CODING FOR RESISTORS
B B R O Y G B V G W
=> VALUES ARE 0 1 2 3 4 5 6 7 8 9
=> first 2 values are same but 3rd valus is multiple of 10 and lost word specifies the tolerance value.
i.e R=red orange orange silver(10%)
2 3 3
so, R=23*10^3
=> I=V/R
=50/23*10^3
=2.17mA
=2.2mA

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%

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).

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.