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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 an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
- A particle moves in a circle of radius 5 cm with constant speed and time period
- A sound absorber attenuates the sound level by 20 dB. The intensity decreases
- If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
- In an astronomical telescope in normal adjustment a straight black line of length
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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