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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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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A nucleus ᵐₙ X emits one α- particle and two β- particles. The resulting nucleus is
- The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
- A photon of wavelength 300nm interacts with a stationary hydrogen atom in ground
- A particle moves along the x-axis from x=0 to x=5 m under the influence of a force
- If potential(in volts) in a region is expressed as V(x,y,z) = 6xy – y + 2yz,
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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