JEE Main 2021 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 26 February 2021, Shift 1, Physics Q27

Question 27 of 90 in this shift, Physics question 27 of 30, Section B.

In an electrical circuit, a battery is connected to pass 20 C of charge through it in a certain given time. The potential difference between two plates of the battery is maintained at 15 V. The workdone by the battery is __________ J.

Official answer

300

NTA final key.

Chapter: Current Electricity
Topic: Electric Potential
Idea tested: Work Done in Field

Same idea in other shifts

Asked 4× in all

7 Apr 2025, Shift 1 · Q38Two charges $q_1$ and $q_2$ are separated by a distance of 30 cm. A third charge $q_3$ initially at 'C' as shown in the figure, is moved…MediumDiagram basedHas a figure
4 Aug 2021, Shift 1 · Q23A drop of liquid of mass $1.8 \times 10^{-5}$ kg falls away from the bottom of a charged conducting sphere of radius 20 cm, carrying with…HardNumerical value
4 Sep 2020, Shift 1 · Q11A two point charges 4q and $-$ q are fixed on the $x$ -axis at $x=-\frac{d}{2}$ and $x=\frac{d}{2}$ , respectively. If a third point charge…MediumDiagram basedHas a figure

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.