🔍 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
đź’ 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.
âś… 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.