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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 spring when stretched by 2mm containing energy 4 J. If it is stretched
- Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
- A particle executes simple harmonic oscillations with an amplitude
- A condenser has a capacity 2 μF and is charged to a voltage of 50 V. The energy
- An alternating voltage given as, V=100√2 sin100t V is applied to a capacitor
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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