A Wheatstone bridge balances when R1/R2 = R3/R4. How does a potentiometer differ in principle?
Q1. A Wheatstone bridge balances when R1/R2 = R3/R4. How does a potentiometer differ in principle?
Answer: Balances EMF without current
Explanation: Potentiometer balances EMF with no current. Bridge compares resistances with current flow.