Voltage Formula (Series Circuit):
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Definition: This calculator determines the voltage across a resistor in a series circuit using Ohm's Law.
Purpose: It helps electrical engineers, students, and hobbyists analyze and design series circuits.
The calculator uses Ohm's Law formula:
Where:
Explanation: In a series circuit, the same current flows through all components, and the voltage across each resistor is proportional to its resistance.
Details: Proper voltage calculation ensures correct component selection, circuit functionality, and prevents damage to components.
Tips: Enter the circuit current in amps and the resistor's resistance in ohms. All values must be > 0.
Q1: Does this work for parallel circuits?
A: No, this calculator is specifically for series circuits. Parallel circuits have different voltage-current relationships.
Q2: What if I have multiple resistors in series?
A: For multiple resistors, use the total series resistance (sum of all resistances) in the calculation.
Q3: How do I measure circuit current?
A: Use an ammeter in series with the circuit or calculate it using total voltage and total resistance.
Q4: What units should I use?
A: Always use amps for current, ohms for resistance, and the result will be in volts.
Q5: Does this account for voltage drop?
A: Yes, this calculates the voltage drop across the specified resistance in the series circuit.