Electrostatics Question 239
The charge on 500 cc of water due to protons will be [RPET 1997]
Options:
A) Increases as $ r $ increases for $ r<R $
B) Decreases as $ r $ increases for $ 0<r<\infty $
C) Decreases as $ r $ increases for $ R<r<\infty $
D) Is discontinuous at $ r=R $
Show Answer
Answer:
Correct Answer: A, C
Solution:
For non-conducting solid sphere $ E _{in}\propto r $ and $ E _{out}\propto \frac{1}{r^{2}} $ i.e. for r < R; E increases as r increases and for R < r < ¥; E decreases as r increases
For non-conducting solid sphere $ E _{in}\propto r $ and $ E _{out}\propto \frac{1}{r^{2}} $ i.e. for r < R; E increases as r increases and for R < r < ¥; E decreases as r increases
BETA
