AExE01 · Chapter 1Basic Electrical & Electronics🏛️ Past Licensure QuestionID: 2ecc1fde
According to Thevenin's theorem, what is the equivalent resistance across the output terminals?
According to Thevenin's theorem, what is the equivalent resistance across the output terminals?
Multiple Choice Options
- A
zero
- B
infinity
- C
V/R
- D✓ Correct Option
R
Detailed Technical Solution & Explanation
According to Thevenin's theorem, the equivalent internal resistance () of a linear network seen across open output terminals is found by deactivating all independent sources (short-circuiting independent voltage sources, open-circuiting independent current sources) and measuring the equivalent driving-point resistance across the terminals, represented simply by .
Option Analysis:
•
Option A (zero): Incorrect. Thevenin resistance is zero only for an ideal voltage source without internal resistance.
•
Option B (infinity): Incorrect. Infinity represents an open circuit.
•
Option C (V/R): Incorrect. has units of current (Amperes), not resistance.
•
Option D (R): Correct. The equivalent resistance across the terminals is the finite Thevenin resistance .
Reference: Mock Test 06NEC Licensure Syllabus