Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsElectric Field & ForceEasy2 minQB

PhysicsEasymultiple choice

The following figure shows a charge Q kept at the centre of a cube. Let $ϕ$ represent the flux of field

to the charge Q , the correct options are :-

Screenshot 2026-06-17 223608.png

Answer:

Solution:

$Φ_{t o t a l} = \frac{Q}{ϵ _{0}}$

$Φ_{A BC D} = \frac{Φ _{t o t a l}}{6} = \frac{Q}{6 ϵ _{0}}$ . Option (A) is correct.

$Φ_{C b p f} = \frac{1}{4} \times Φ_{A BC D} = \frac{1}{4} \times \frac{Q}{6 ϵ _{0}} = \frac{Q}{24 ϵ _{0}}$ . Option (B) is correct.

$Φ_{ab c d} = 0$ . Option (C) is correct.

Stream:JEESubject:PhysicsTopic:ElectrostaticsSubtopic:Electric Field & Force

⏱ 2mℹ️ Source: QB

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