The current through resistor R2 can be calculated I2= (3.3 V) / (47 ohm) = 0.070 amps = 70 mA Current Divider - Online Calculator R1 - resistance (ohms) R2- resistance (ohms) U - electrical potential (volts) R - total resistance (ohms) I1 - split current (amps) I2...
The calculator is a voltage limiting tube current limiting resistor calculator, which can calculate the resistance value of the voltage limiting tube and its power value online. Input value: Maximum input V Minimum input voltage: V output voltage: ...
A simple example is a resistor in series with an LED. You would usually want to have a current limiting resistor in series with your LED so that you can control the amount of current through the LED. If too much current is going through your LED, it will burn out too fast. If too ...
1. What is the current in milliamperes produced by the solar cells of a pocket calculator through which 4.00 C of charge passes in 4.00 h? 2. A total of 600 C of charge passes through a flashlight in 0.500 h. What is the average current? 3. What is the current when a typical stat...
If a currentIflows through a resistor, and there is a voltageVacross theresistor.Rcan be calculated. Third Version of the (resistance) formula:R = V / I All of these variations of the so called "Ohm's Law" are mathematically equal to one another. ...
Current divider circuits also find application in electric meter circuits, where a fraction of measured current is desired to be routed through a sensitive detection device. Using the current divider formula, the proper shunt resistor can be sized to proportion just the right amount of current for...
Step 5: Use Ohm’s law to calculate the expected current through each resistor, Rn where n = 1, 2, or 3. In=VbatteryRnIn=VbatteryRn Step 6: Now, verify these calculated values by measuring the currents with a digital ammeter. You can do this by placing the red probe of the ammete...
To calculate the value of the second resistor based on the desired max USB current you would simply do: i=5/Rs where i is the max current and Rs is the second resistor. From that it is easy to see that if Rs=5 then the max current is 1 amp, and if Rs=10 the max current is...
So yes, the resistor does reduce the current. (But the current flowing into the resistor is still the same as the current flowing out.) This is one of the mindset shifts a beginner has to go through when learning electronics. But after a few examples and a bit of practice, this becomes...
This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (.....