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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
- Two small spherical shells A and B are given positive charges of 9C and 4C
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
- In India, electricity is supplied for domestic use at 200V. It is supplied at 110 V
- If r denotes the distance between sun and the earth, then the angular momentum of the earth
- The momentum of a body is increased by 20%.The percentage increases in kinetic energy
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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