This tool calculates the voltage drop across each resistor in a series network of two resistors.
Enter
- Input Voltage Vin
- R1 and R2 in milliOhm/Ohm/kiloOhm/megaOhm
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Payment options Formula V1=Vin*R1/(R1+R2)
V2=Vin*R2/(R1+R2)
The largest voltage drop will be across the larger resistor value. Conversely, the smallest voltage drop will be across the smaller.
If you want to calculate the voltage drop across a single resistor set R2=0 and from the equations above, V1=Vin and V2=0 (which makes sense).
Example Calculation
With R1=1Ω, R2=3Ω, Vin=12V, the voltages
- V1=3V
- V2=9V
The sum of the two voltages = the input voltage. As a check you can see that 3+9= 12V
Related Calculators
Voltage Divider Calculator with 3 resistors
Voltage Divider Calculator with 5 resistors
The post Voltage Divider Calculator appeared first on OneSDR - A Wireless Technology Blog.
Source: https://www.onesdr.com/voltage-divider-calculator/