Question

What is the ratio of the charges of two conducting spheres of radii r₁ and r₂ which have equal surface charge density?

विकल्प

• `"r"_1^2/"r"_2^2`

• `"r"_2^2/"r"_1^2`

• `"r"_1/"r"_2`

• `"r"_2/"r"_1`

Answer 1

`"r"_1^2/"r"_2^2`

Explanation:

` "Here,"  sigma_1 = sigma_2`

`therefore  "q"_1/(4pi_1^2) = "q"_2/(4pi"r"_2^2) Rightarrow "q"_1/"q"_2 = "r"_1^2/"r"_2^2`