SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

A charge Q is disturbed over three concentric spherical shells of radii a, b, c (a  such that their surface charge densities are equal to one another. The total potential at a point at distance r from their common centre, where r a, would be :

(a)

 

(b)

 

(c)

 

(d)

 


Question ID - 50229 :-

A charge Q is disturbed over three concentric spherical shells of radii a, b, c (a  such that their surface charge densities are equal to one another. The total potential at a point at distance r from their common centre, where r a, would be :

(a)

 

(b)

 

(c)

 

(d)

 

1 Answer
5876 Votes
3537

Answer Key : (b) -

Potential at point P, V= + +

 

   

Q

    = Q

    = Q

     V=

Correct answer is (b).



Next Question :

Water flows into a large tank with flat bottom at the rate of .water is also leaking out of the hole of area 1  at its bottom. If the height of the water in the tank remains steady, then this height is:

(a)

4 cm

(b)

2.9 cm

(c)

1.7 cm

(d)

5.1 cm


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