Voltage Drop Across a Resistor Calculator

A Voltage divider calculator calculates the voltage drops on each resistor load, when connected in series. Enter the total voltage supply, Resistance of first load, second load and third load and click calculate. You will get the results of voltage drops in volts. Make use of the below simple voltage drop across resistor calculator to get the voltage drop values.

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Ω
Ω
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Volts

A Voltage divider calculator calculates the voltage drops on each resistor load, when connected in series. Enter the total voltage supply, Resistance of first load, second load and third load and click calculate. You will get the results of voltage drops in volts. Make use of the below simple voltage drop across resistor calculator to get the voltage drop values.

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Formula:

Vi = VT (Ri / R1 + R2 + R3 + ..) Where, Vi = Voltage Drop R1 = Resistance of Resistor R1 R2 = Resistance of Resistor R2 R3 = Resistance of Resistor R3 Ri = Resistance of Resistor Ri VT = Total Voltage

Example

The voltage drop across each resistor with total voltage of 12 V and resistances 5, 8 and 2 can be calculated as
V1 = 12 (5 / 5 + 8 + 2)
V1 = 4

V2 = 12 (8 / 5 + 8 + 2)
V2 = 6.4

V3 = 12 (2 / 5 + 8 + 2)
V3 = 1.6


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