Current Formula:
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Definition: This calculator determines the electric current flowing through a circuit based on voltage and resistance using Ohm's Law.
Purpose: It helps electricians, engineers, and students quickly calculate current in electrical circuits.
The calculator uses Ohm's Law formula:
Where:
Explanation: The voltage is divided by the resistance to calculate the current flowing through the circuit.
Details: Proper current calculation ensures circuit safety, proper component selection, and efficient electrical system design.
Tips: Enter the voltage in volts and resistance in ohms. Both values must be positive numbers.
Q1: What is Ohm's Law?
A: Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
Q2: What units should I use?
A: Use volts for voltage, ohms for resistance, and the result will be in amperes (amps).
Q3: Can I use this for AC circuits?
A: This calculator is for DC circuits. For AC circuits with reactance, you'll need to consider impedance.
Q4: What if I get zero resistance?
A: Zero resistance would theoretically result in infinite current (short circuit), which isn't physically possible.
Q5: How accurate is this calculation?
A: The calculation is mathematically precise, but real-world factors like temperature and material properties may affect actual current.