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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
Related Questions: - A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
- When 4 A current flows for 2 min in an electroplating experiment,
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
- When 4 A current flows for 2 min in an electroplating experiment,
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
- A spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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