A point charge q produces an electric field of magnitude `2NC^(-1)` at a point distance 0.25 m from it. What is the value of charge ?

Question

A point charge q produces an electric field of magnitude `2NC^(-1)` at a point distance 0.25 m from it. What is the value of charge ?

A point charge q produces an electric field of magnitude `2NC^(-1)` at a point distance 0.25 m from it. What is the value of charge ?
A. `1.39xx10^(-11)C`
B. `1.39xx10^(11)C`
C. `13.9xx10^(-11)C`
D. `139xx10^(11)C`

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
Electric field,`" E"=(q)/(4pi epsilon_(0)r^(2)) rArr q = 4pi epsilon_(0)r^(2)E`
`therefore" Charge, q"=((0.25)^(2)xx2)/(9xx10^(9))=1.39xx10^(-11)C`

6 views Answered 2023-02-05 15:29