Electrostatics 1 Question 14

14. The electric field within the nucleus is generally observed to be linearly dependent on r. This implies

(a) a=0

(b) a=R2

(c) a=R

(d) a=2R3

Match the Column

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Answer:

Correct Answer: 14. (b)

Solution:

  1. In case of solid sphere of charge of uniform volume density

E=14πε0qR3r or Er

Thus, for E to be linearly dependent on r, volume charge density should be constant.

or

a=R

Correct option is (c).



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