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CBSE Class 12-science Answered

What is the magnitude of the electric field at a field point 3 m from a point charge q = 6 nC?
Asked by Topperlearning User | 16 Apr, 2015, 09:48: AM
answered-by-expert Expert Answer

Given:

begin mathsize 11px style straight r space equals space 3 straight m straight q space equals space 6 nC space equals space 6 space cross times space 10 to the power of negative 9 end exponent space straight C straight E space equals space fraction numerator 1 over denominator 4 straight pi element of subscript 0 end fraction fraction numerator open vertical bar straight q close vertical bar over denominator straight r squared end fraction space equals space 9 space cross times space 10 to the power of 9 space fraction numerator 6 space cross times space 10 to the power of negative 9 end exponent over denominator left parenthesis 3 right parenthesis squared end fraction straight E space equals space 6 space straight N divided by straight C end style

 

Answered by | 16 Apr, 2015, 11:48: AM

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