Question

A conducting sphere A having a radius a is charged to a potential V₁. Now it is surrounded by another conducting spherical shell of radius b. The potential V₂ acquired by the sphere A after it is connected to shell B by a thin conducting wire is-

• A. V₁$\frac{a}{b}$
• B. V₁$\frac{b}{a}$
• C. $\frac{V_{1}(a + b)}{b}$
• D. $\frac{V_{1}a}{a + b}$

Answer 1

Answer: (A)

V₁$\frac{a}{b}$

Answer 2

V₁ = $\frac { \mathrm { Kq } } { \mathrm { a } }$

V₂ = $\frac { \mathrm { Kq } ^ { \prime } } { \mathrm { b } }$ = $\frac { \mathrm { Kq } } { \mathrm { b } }$

= =