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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
- Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric
- The logic behind NOR gate is that it gives
- Magnetic induction produced at the centre of a circular loop carrying current is B.
- A cycle wheel of radius 4 m completes one revolution in two seconds. Then acceleration
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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