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When a 10 μC charge is enclosed by a closed surface, the flux passing through the surface is 0. Now another -10 μC charge is placed inside the closed surface, then the flux passing through the surface is ______ (A) 2Φ (B) Φ (C) 4Φ (D) zero |
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Answer» udent,◆ Answer -(D) zero◆ EXPLANATION -Gauss's law STATES that the electric field FLUX through a CLOSED surface equals the enclosed charge divided by the PERMITIVITY of free space.Thus, electric flux is -Electric flux = charge / permittivityΦ' = (10×10^-6 - 10×10^-6) / ε0Φ' = 0 / ε0Φ' = 0 Therefore, the flux passing through the surface is zero.Hope this helps you... |
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