🔍 Key Concepts

• Ohm's Law relationships between voltage (E), current (I), and resistance (R) • How to correctly solve Ohm's Law for each variable: I, E, and R • Checking that units make sense: volts, amps, and ohms

💭 Think About

• Start from the basic Ohm's Law equation and rearrange it algebraically to solve for I, E, and R. Which of the options does not match your rearranged form? • Think about a simple circuit: if resistance increases while voltage stays the same, what should happen to current? Which formula contradicts that behavior? • Write the triangle or memory aid you use for Ohm's Law (E on top, I and R on the bottom). Which formulas can you read correctly from that triangle?

✅ Before You Answer

• Be sure the base equation you start from is correct before rearranging • Verify that the formulas where I is alone show current inversely proportional to resistance and directly proportional to voltage • Check that each formula’s units reduce properly: volts / ohms = amps, amps × ohms = volts