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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
- When a spring is extended by 2 cm energy stored is 100 J. When extended further by 2 cm
- A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
- A body of weight W newton is at the surface of the earth.
- A ray of light passes from a medium A having refractive index 1.6 to the medium
- A body A experiences perfectly elastic collision with a stationary body B
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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