JEE Main 2020 — Electrostatics Question with Solution
From: JEE Main 2020 (Online) 3rd September Morning Slot
Question
Two isolated conducting spheres S1 and S2 of
radius and have 12 C and –3 C
charges, respectively, and are at a large
distance from each other. They are now
connected by a conducting wire. A long time
after this is done the charges on S1 and S2 are
respectively :
Choose an option
Show full solutionCorrect option: C
Correct answer
C6 C and 3 C
Step-by-step explanation
q1 + q2 = 12 - 3 = 9 C .....(1)
and V1 = V2
q1 = 2q2 .....(2)
Now puttion the value of (2) in (1), we get
2q2 + q2 = 9
3q2 = 9
q2 = 3 C
q1 = 6 C
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