In a parallel circuit, the voltage drop across each component is the same. What formal name is given to this property?

In a parallel circuit, the voltage drop across each component is the same. What formal name is given to this property?

• A. Ohm's Law
• B. Law for voltage in Parallel circuit
• C. Law for current in a parallel circuit
• D. Law for resistance in a parallel circuit

Answer: (B)

In a parallel circuit, all branches connect to the same two nodes, so they share the same potential difference. The wires linking those nodes have negligible resistance, meaning there’s no extra voltage drop along the path to each branch. Because of that, the voltage across every component in parallel is equal to the source voltage. This is described in the option as the law for voltage in a parallel circuit. Ohm’s Law is about V = IR for a single element, not about the equality of voltages across parallel branches. The law for current in a parallel circuit explains how currents divide among branches, not the shared voltage. The law for resistance in a parallel circuit gives the formula for the combined (equivalent) resistance, not the voltage behavior across each branch.

In a parallel circuit, all branches connect to the same two nodes, so they share the same potential difference. The wires linking those nodes have negligible resistance, meaning there’s no extra voltage drop along the path to each branch. Because of that, the voltage across every component in parallel is equal to the source voltage. This is described in the option as the law for voltage in a parallel circuit.

Ohm’s Law is about V = IR for a single element, not about the equality of voltages across parallel branches. The law for current in a parallel circuit explains how currents divide among branches, not the shared voltage. The law for resistance in a parallel circuit gives the formula for the combined (equivalent) resistance, not the voltage behavior across each branch.