A plane surface of area $10 c m^{2}$ is placed in a uniform electric field of $20 N / C$ such that the angle between the surface and the electric field is $30^{o}$ . The electric flux over the surface is:

0.0173 V m

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0.0236 V m

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0.01 V m

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0.0346 V m

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Solution

The correct option is C $0.01 V m$
Given,
Electric field, $E = 20 N C^{- 1}$
Area, $A = 10 \times 10^{- 4} m^{2}$ A
Electric Flux $ϕ = E . A cos θ = 20 \times 10 \times 10^{- 4} cos 60^{o} = 0.01 V m$

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A plane surface of area 10 cm2 is placed in a uniform electric field of 20 N/C such that the angle between the surface and the electric field is 30o. The electric flux over the surface is:

The correct option is C 0.01 VmGiven,Electric field, E=20NC−1Area, A=10×10−4m2 AElectric Flux ϕ=E.Acosθ=20×10×10−4cos60o=0.01Vm

A plane surface of area $10 c m^{2}$ is placed in a uniform electric field of $20 N / C$ such that the angle between the surface and the electric field is $30^{o}$ . The electric flux over the surface is:

The correct option is C $0.01 V m$
Given,
Electric field, $E = 20 N C^{- 1}$
Area, $A = 10 \times 10^{- 4} m^{2}$ A
Electric Flux $ϕ = E . A cos θ = 20 \times 10 \times 10^{- 4} cos 60^{o} = 0.01 V m$