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. If the length of a closed organ pipe is 1.5 m and velocity of sound is 330 m/s,
2. Three capacitors 3μF,6μF and 6μF are connected in series to a source of 120V.
3. The average power dissipated in AC circuit is 2 W. If a current flowing through
4. The half-life of a radioactive substance is 30 min. The time (in minutes) taken
5. A circular disc of radius R and thickness R/6 has moment of inertia I about an axis

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