In a practical Wheatstone bridge, what is the main source of error?
Correct Answer: Non-ideal resistors
- Step 1: Understand what a Wheatstone bridge is. It is a circuit used to measure unknown resistances.
- Step 2: Know that the Wheatstone bridge uses four resistors to balance the circuit.
- Step 3: Recognize that resistors are not perfect; they have tolerances, meaning their actual resistance can vary from their labeled value.
- Step 4: Learn that temperature can affect resistors, changing their resistance as the temperature changes.
- Step 5: Realize that these imperfections in resistors can lead to errors in the measurements taken with the Wheatstone bridge.
No concepts available.
