A small conducting sphere of radius a, carrying a charge +Q, is placed inside an equal and oppositely charged conducting shell of radius b such that their centers coincide. Determine the potential at a point which is at a distance c from center such that a

Question

A small conducting sphere of radius a, carrying a charge +Q, is placed inside an equal and oppositely charged conducting shell of radius b such that their centers coincide. Determine the potential at a point which is at a distance c from center such that a < c < b. (A) k(Q / c+Q / b) (B) k(Q / a+Q / b) (C) k(Q / a-Q / b) (D) k(Q / c-Q / b)

Tardigrade Admin · Accepted Answer

V=(k Q/c)-(k Q/b)=k((Q/c)-(Q/b))

Q. A small conducting sphere of radius $a$ , carrying a charge $+ Q$ , is placed inside an equal and oppositely charged conducting shell of radius $b$ such that their centers coincide. Determine the potential at a point which is at a distance $c$ from center such that $a < c < b$ .

$k (Q / c + Q / b)$

$k (Q / a + Q / b)$

$k (Q / a - Q / b)$

$k (Q / c - Q / b)$

$V = \frac{k Q}{c} - \frac{k Q}{b} = k (\frac{Q}{c} - \frac{Q}{b})$

Q. A small conducting sphere of radius a, carrying a charge +Q, is placed inside an equal and oppositely charged conducting shell of radius b such that their centers coincide. Determine the potential at a point which is at a distance c from center such that a<c<b.

k(Q/c+Q/b)

k(Q/a+Q/b)

k(Q/a−Q/b)

k(Q/c−Q/b)