JEE Main 2020 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 3 September 2020, Shift 2, Physics Q12

Question 12 of 75 in this shift, Physics question 12 of 25.

Two resistors

400\,\Omega

and

800\,\Omega

are connected in series across a 6 V battery. The potential difference measured by a voltmeter of 10 k

\Omega

across

400\,\Omega

resistor is close to :

(1)2 V
(2)1.95 VOfficial answer
(3)1.8 V
(4)2.05 V

Official answer

Option 2

NTA final key (Sep 2020).

Chapter: Current Electricity
Topic: Kirchhoff's Laws
Idea tested: Voltmeter Loading Effect

Same idea in other shifts

Asked 3× in all

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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.