How to Calculate Electric Current Using Ohm's Law

Learn how to calculate electric current (I) in a circuit using Ohm's Law formula: I = V ÷ R. Simple steps for understanding current flow.

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To calculate current (I), use Ohm's Law: I = V / R, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms. This formula helps in determining the flow of electric charge in a circuit.

FAQs & Answers

  1. What is the formula to calculate electric current? Electric current (I) can be calculated using Ohm's Law: I = V ÷ R, where V is voltage and R is resistance.
  2. What units are used for electric current, voltage, and resistance? Electric current is measured in amperes (A), voltage in volts (V), and resistance in ohms (Ω).
  3. How does resistance affect the electric current in a circuit? Higher resistance reduces the electric current flow in a circuit for a given voltage, according to Ohm's Law.