Two Imaginary Spherical Surfaces of Radius R and 2R Respectively

question 34

Multiple Choice

Two imaginary spherical surfaces of radius R and 2R respectively surround a positive point charge Q located at the centre of the concentric spheres.When compared to the number of field lines N1 going through the sphere of radius R, the number of electric field lines N2 going through the sphere of radius 2R is:

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