🔍 Key Concepts

• Ohm's Law relationship among voltage (E), current (I), and resistance (R) • How algebraic rearrangement of a formula works • Interpreting whether different-looking formulas can express the same law

💭 Think About

• Start with the most common form of Ohm’s Law you remember and write it down. • Ask yourself: if I solve that formula for a different variable (e.g., solve for I or for R), what do I get? • Compare each choice to see if it can be derived from that one basic Ohm’s Law equation.

✅ Before You Answer

• Verify that each option can be obtained by simple algebra from the basic Ohm’s Law equation you know. • Check that units still make sense in each rearranged form (volts, amps, ohms). • Confirm whether the question is asking for the single statement of Ohm’s Law or any correct algebraic form of it.