1. What is Current in Series?

Definition: In a series circuit, the current (I) is the same through all components and is calculated by dividing the voltage (V) by the total resistance (R).

Purpose: This calculator helps determine the current flowing through a series circuit given the voltage and resistances.

2. How Does the Calculator Work?

The calculator uses Ohm's Law for series circuits:

Where:

• \( I \) — Current (amps)
• \( V \) — Voltage (volts)
• \( \sum R \) — Sum of all resistances (ohms)

Explanation: The voltage is divided by the sum of all resistances in the series circuit to calculate the current.

3. Importance of Current Calculation

Details: Proper current calculation ensures circuit components receive appropriate current and helps prevent damage from overcurrent.

4. Using the Calculator

Tips: Enter the voltage and at least one resistance value. You can add up to three resistances. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is current the same in series?
A: In series circuits, there's only one path for current to flow, so the same current passes through all components.

Q2: What happens if I add more resistors in series?
A: The total resistance increases, which decreases the current according to Ohm's Law.

Q3: Can I calculate current with just voltage and one resistance?
A: Yes, the calculator works with any number of resistances (minimum one required).

Q4: What units should I use?
A: Voltage in volts, resistances in ohms, resulting current will be in amps.

Q5: Does this work for AC circuits?
A: This calculator is for DC circuits. For AC, you would need to consider impedance (which includes resistance and reactance).