A wire having resistance 12Ω is bent in the form of an equilateral triangle.

⇦

⇨

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:

1. A point charge q is situated at a distance r on axis from one end of a thin
2. In a diffraction pattern due to a singleslit of width a, the first minimum is observed
3. The identical cells connected in series are needed to heat a wire of length one meter
4. A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
5. The magnetic susceptibility of a material of a rod is 449. Permeability of vaccum

Topics: Current Electricity (136)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends