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Grade 11AIIMS MBBS

There are four shells A, B, C and D of radii a, 2a, 3a and 4a, respectively. Shells B and D are given charges +q and -q, respectively. Shell C is now earthed. The potential difference between A and C is

Kq/2a

Kq/3a

Kq/4a

Kq/6a

Abhishek Dogra

7 Years agoGrade 11

1 Answer

abdul

7 Years ago

V_A=k(0/a + Q/2a + 0/3a – Q/4a)

VA=kQ/4a

V_B=K(0/a +Q/3a +0/3a -Q/4a)

V_B=KQ/12a

v_a-v_b=kQ/4a – kQ/12a= k q /6a

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