Electrostatics 1 Question 12

12. The electric field at r=R is

(2008, 4M)

(a) independent of a

(b) directly proportional to a

(c) directly proportional to a2

(d) inversely proportional to a

Show Answer

Answer:

Correct Answer: 12. (c)

Solution:

  1. At r=R, from Gauss’s law

E(4πR2)=qnet ε0=Zeε0 or E=14πε0ZeR2

E is independent of a.

Correct option is (a).



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक