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 3 of 8.
Upendra kumar sahu said:
1 decade ago
Total resistance = 23000+/- 10%.
Voltage = 50.
Then I = V/R.
= 50/23000.
= 0.00217A .
= 0.00217*1000(due to we need mA) = 2.173 or 2.2mA (answer).
Voltage = 50.
Then I = V/R.
= 50/23000.
= 0.00217A .
= 0.00217*1000(due to we need mA) = 2.173 or 2.2mA (answer).
Prashant singh said:
1 decade ago
Easy to remember color codes BBROY GB VG W.
Let us consider BBROY as name and GB as gigabyte VG as very good AND W as last letter in English alphabetical is W (app.).
Let us consider BBROY as name and GB as gigabyte VG as very good AND W as last letter in English alphabetical is W (app.).
Sushil said:
6 years ago
In this problem nobody taken Silver band +/-10 % Tolerance while calculating Ohmic value? if consider answer A is correct. Answer B does not satisfy here.
Shruthi gopalan said:
8 years ago
According to ohms law, I = V/R.
Given :
V = 50v.
R = red ,orange,orange,silver = 23 X 10^3 with 10% tolerance.
So, I = V/R = 50 /(23x10^3) = 2.2mA.
Given :
V = 50v.
R = red ,orange,orange,silver = 23 X 10^3 with 10% tolerance.
So, I = V/R = 50 /(23x10^3) = 2.2mA.
Bibek said:
7 years ago
After calculating, I got the value of resistance 25300 max and 20700 min. So which value should I use for resistance- max or min? Please explain me.
(1)
Rajesh Kumar said:
1 decade ago
Memorizing line is
"BBROY went to Great Britain to get Very Good Wife with Gold and Silver".
Capital letters represent color codes in sequence!
"BBROY went to Great Britain to get Very Good Wife with Gold and Silver".
Capital letters represent color codes in sequence!
Pooja said:
1 decade ago
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.
Vanita M k said:
8 years ago
What about 5 colors resistor for example: red, Yello, grey, blue, violet?
Ans: 2486*10^7
Or
Ans: 248*10^6.
Please, anyone, explain.
Ans: 2486*10^7
Or
Ans: 248*10^6.
Please, anyone, explain.
Aniruddha said:
1 decade ago
Thanks Suresh & Satish for make me clear about colour coding. But second orange code is nt clear easyly. Please clear my dout.
Himabindu said:
1 decade ago
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.
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