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Charge Behaviour

The three sma...

Question

The three small sphere as shown in fig. carry charges $q_{1} = 4 n C, q_{2} = - 7.8 n C$ and $q_{3} = 2.4 n C$ . Find the net electric flux through $S_{1}$ surface shown in cross section in the figure.

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Solution

Flux through closed surface $S_{1}, ϕ_{S_{1}} = \frac{Q_{i n}}{ϵ_{0}} = \frac{q_{1}}{ϵ_{0}} = (4.00 \times 10^{- 9} C) / ϵ_{0} = 452 N m^{2} / C$

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Similar questions

q_{1} = 4 n C, q_{2} = - 7.8 n C

q_{3} = 2.4 n C

N m^{2} / C

S_{2}

q_{1} = 2 \times 10^{- 6} C, q_{2} = 3 \times 10^{- 6} C

q_{3} = - 6 \times 10^{- 6} C

q_{1}

q_{2}

q_{3}

q_{4}

q_{1}

q_{2}

q_{1}

q_{2}

The electric flux through the surface S as due to all the charges as shown in following figure is $\frac{q_{1} + q_{3} - q_{2} - q_{4}}{ϵ_{0}}$

S

q_{1} = q_{4} = 3.1 n C, q_{2} = q_{5} - 5.9 n C, q_{3} = - 3.1 n C

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