Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • An infinite number of point charges, each carrying 1  cagrge, are placed along the y-axis at y=1m, 2m, 4m .8m _____ The total force on a 1 C point charge, placed at the origin is <img alt=

An infinite number of point charges, each carrying 1 \mu C cagrge, are placed along the y-axis at y=1m, 2m, 4m .8m _____ The total force on a 1 C point charge, placed at the origin is x \times 10^3 N.  The value of x, to the nearest interger is ________
Option: 1 12
Option: 2 6
Option: 3 3
Option: 4 12

Answers (1)

best_answer

\begin{array}{l} F = k (1 C )(1 \mu C )\left[1+\frac{1}{2^{2}}+\frac{1}{4^{2}}+\frac{1}{8^{2}}+\ldots\right] \\ \\ =9 \times 10^{3}\left[\frac{1}{1-\frac{1}{4}}\right]=12 \times 10^{3} N \end{array}

Posted by

Deependra Verma

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025 withheld results declared; NTA issues show cause notices ahead of action
anam-khan

JCECEB 2025 registration for BTech admission through JEE Main rank begins jceceb.jharkhand.gov.in
anam-khan

JEE Main 2025: BTech CSE cut-offs for PwD candidates at NITs make entry easy; top institutes still selective

Latest Question