AExE01 · Chapter 1Basic Electrical & Electronics🏛️ Past Licensure QuestionID: 6f9df6de
The operating principle and balance condition of a Wheatstone bridge is derived using:
The operating principle and balance condition of a Wheatstone bridge is derived using:
Multiple Choice Options
- A
Faraday's law
- B
ohm's law
- C✓ Correct Option
kirchoffs law
- D
Biot savarts law
Detailed Technical Solution & Explanation
The balanced bridge relationship of a Wheatstone bridge is derived directly from Kirchhoff's Voltage Law (KVL) and Kirchhoff's Current Law (KCL) by equating loop potential drops when galvanometer current is zero.
Option Analysis:
•
Option A (Faraday's law): Incorrect. Governs electromagnetic induction.
•
Option B (ohm's law): Incorrect alone. While individual resistor equations follow Ohm's law, the balanced network loop formulation relies on Kirchhoff's laws.
•
Option C (kirchoffs law): Correct. Network mesh and node equations form the theoretical basis of the Wheatstone bridge.
•
Option D (Biot savarts law): Incorrect. Computes magnetic fields produced by electric currents.
Reference: Mock Test 06NEC Licensure Syllabus