Which combination of three resistors R, Ry and R3 has minimum total resistance? (Consider R, = 1Q, Rp =2Q and R3 = 3Q)
Options:
Accepted Answer: (A) When all are connected in parallel
Topic Covered: Physics
Key Concept: Mechanics, electricity, waves and thermodynamics
The correct option follows from the governing physical law or definition. “When all are connected in parallel” is consistent with the required relationship between the quantities or phenomenon described.
The key is to apply the central fact, formula, definition or relationship tested in the question and then eliminate alternatives that do not satisfy it.