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A wire having resistance 12Ω is bent in the form of an equilateral triangle. The effective resistance between any two corners of the triangle will be
Options
(a) 6Ω
(b) 8/3Ω
(c) 9Ω
(d) 12Ω
Correct Answer:
8/3Ω
Explanation:
As resistance, R ∝ length
.·. Resistance of each arm = 12 / 3 = 4 Ω
So, effective resistance between any two corners,
Reff = (4×8) / (4+8) = 32 / 12 = (8/3) Ω
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A liquid wets a solid completely. The meniscus of the liquid in a sufficiently long
- The capacitance of two concentric spherical shells of radii R₁ and R₂ (R₂>R₁) is
- Two charges of equal magnitude q are placed in air at a distance 2a
- If the band gap between valence band and conduction band in a material is 5.0 eV,
- The current in the windings of a toroid is 2.0 A. There are 400 turns
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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