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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
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A coin placed on a rotating turn table just slips,if it is placed at a distance
- A bar magnet of moment of inertia I is vibrated in a magnetic field of induction
- A beaker of radius 1.5 cm is filled with a liquid of surface tension 0.075 N/m
- If temperature of gas increases from 27°C to 927°C, the kinetic energy will be
- A potentiometer wire has length 4m resistance 8Ω. The resistance that must be connected
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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