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Generally 330ohm resistors are used to power a typical 3 volt LED if the source voltage is 5v

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Q: Why do you need 330 ohm resistor for LED?
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Related questions

What is the color code for a 330 ohm resistor?

orange-orange-orange


What is the usage of 330 ohm resistor?

No. It will not serve its intended purpose.


Why do you use 330 ohm resistor for LED?

It is not 330 ohms it is a value that must be installed in series to insure a 20ma or so of current limiting. This value of 330 ohms can change greatly if the source voltage changes greatly. It also has to be noted that the LEDS are not created equally So each LED voltage drop can be added to the equation.


If a 1.5 V battery is connected to a 330 Ohms resistor Calculate the current in the circuit?

Ohm's laws says it will be 1.5 vdc divided by 330 ohms.


Ism there 0 ohm resister available in market then its colour coding what?

Why would you buy something that does absolutely nothing? If you need a "zero ohm resistor", just don't connect any resistor at all.Why would you buy something that does absolutely nothing? If you need a "zero ohm resistor", just don't connect any resistor at all.Why would you buy something that does absolutely nothing? If you need a "zero ohm resistor", just don't connect any resistor at all.Why would you buy something that does absolutely nothing? If you need a "zero ohm resistor", just don't connect any resistor at all.


Why you use 250 Ohm resistor in series with HART protocol communication?

You need to use the 250 Ohm resistor in series with HART protocol communication because it acts as a shunt resistor.


A 5 ohm resistor a 10 ohm resistor and a 15 ohm resistor are connected in series to a 120 volt power source. What is the amount of current flowing between the 5 ohm resistor and the 10 ohm resistor?

The current would be about 20 volts.


A 120 ohm resistor a 60 ohm resistor and a 40 ohm resistor are connected in parallel to a 120 volt power source. What is the current running through the 120 ohm resistor?

1amp


Is 2.2k ohm resistor and 220 ohm resistor the same resistance?

No. 2.2K ohm is 2200 Ohms.


What is the resistance of a 10-ohm resistor and a 7- ohm resistor in a series?

3


How many amps will you get on a 9 volt battery with a 100 ohm resistor and a 100 ohm resistor and a 470 ohm resistor?

You need to calculate the equivalent resistance. For instance, if the three resistors are connected in series, simply add all the resistance values up. Then, you calculate the current (in amperes) using Ohm's Law (V=IR); that is, you need to divide the voltage by the resistance.


What is the phase angle of an ohm inductor in series with an ohm resistor connected to a 5 KHz source?

You need to provide values of resistor and inductor etc to find the phase angle.