Charge of 2C is placed at the centre of a cube of volume 8 cm^3. What is the electric flux passing through one face? 

Asked by hitanshu04 | 27th May, 2021, 07:33: PM

Expert Answer:

Volume og given cube is 8 cm3 , hence side length of cube is 2 cm.
 
By Gauss theorem , electric flux over the closed surface is enclosed charge within the closed surface divided by permittivity of the medium.
 
If the medium inside the cube is air or vaccum , then total Electric flux φ over the closed surface of cube  is given by
 
φ = Q / εo  = 2 / ( 8.854 × 10-12 ) = 2.259 × 1011 N C-1 m2 
 
Electric flux passing through one face = ( 2.259 × 1011 ) / 6  = 3.765 × 1010 N C-1 m2 

Answered by Thiyagarajan K | 27th May, 2021, 08:59: PM