JEE Main 2023 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 10 April 2023, Shift 2, Physics Q60

Question 60 of 90 in this shift, Physics question 30 of 30, Section B.

A rectangular parallelopiped is measured as 1 cm

\times

1 cm

\times

100 cm. If its specific resistance is

3\times10^{-7}\ \Omega

m, then the resistance between its two opposite rectangular faces will be ____________

\times10^{-7}\ \Omega

Official answer

NTA final key.

Chapter: Current Electricity
Topic: Ohm's Law and Resistance
Idea tested: Resistivity and Geometry

Same idea in other shifts

Asked 10× in all

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29 Jul 2022, Shift 1 · Q42Two metallic wires of identical dimensions are connected in series. If $\sigma_1$ and $\sigma_2$ are the conductivities of the these wires…MediumSingle correct
30 Jun 2022, Shift 1 · Q45An electric cable of copper has just one wire of radius 9 mm. Its resistance is 14 $\Omega$ . If this single copper wire of the cable is…EasySingle correct
4 Aug 2021, Shift 1 · Q21A wire of length L is coated by another conducting material of double resistivity and the thickness of the layer is equal to the radius of…MediumNumerical valueHas a figure
26 Aug 2021, Shift 1 · Q17What equal length of an iron wire and a copper-nickel alloy wire, each of 2 mm diameter connected parallel to give an equivalent…MediumSingle correct
22 Jul 2021, Shift 2 · Q7A Copper (Cu) rod of length 25 cm and cross-sectional area 3 mm $^2$ is joined with a similar Aluminium (Al) rod as shown in figure. Find…EasySingle correctHas a figure
18 Mar 2021, Shift 2 · Q23Two wires of same length and thickness having specific resistances 6 $\Omega$ cm and 3 $\Omega$ cm respectively are connected in parallel.…EasyNumerical value

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.