JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 5 April 2024, Shift 2, Physics Q56

Question 56 of 90 in this shift, Physics question 26 of 30, Section B.

A wire of resistance

20\ \Omega

is divided into 10 equal parts, resulting pairs. A combination of two parts are connected in parallel and so on. Now resulting pairs of parallel combination are connected in series. The equivalent resistance of final combination is ________

\Omega

Official answer

NTA final key.

Chapter: Current Electricity
Topic: Ohm's Law and Resistance
Idea tested: Resistance of Cut and Recombined Uniform Wires

Same idea in other shifts

Asked 4× in all

27 Jan 2024, Shift 1 · Q41A wire of resistance R and length L is cut into 5 equal parts. If these parts are joined parallely, then resultant resistance will be :EasySingle correct
30 Jan 2024, Shift 2 · Q41When a potential difference $V$ is applied across a wire of resistance $R$ , it dissipates energy at a rate $W$ . If the wire is cut into…EasySingle correct
28 Jul 2022, Shift 2 · Q11Given below are two statements : Statement I : A uniform wire of resistance $80\ \Omega$ is cut into four equal parts. These parts are now…EasyTwo statements

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.