Question 399: Electrostatics & Capacitance

Question

A charge 'q' is placed at one corner of a cube as shown in figure. The flux of electrostatic field $$\overrightarrow E $$ through the shaded area is :

Accepted Answer

Flux through cube, $$\phi  = {q \over {8{\varepsilon _0}}}$$
Flux through surfaces ABEH, ADGH, ABCD will be zero.
$$\phi $$(EFGH) = $$\phi $$(DCFG) = $$\phi $$(EBCF) = $${1 \over 3}\left( {{q \over {8{\varepsilon _0}}}} \right)$$
= $${q \over {24{\varepsilon _0}}}$$

Answer

$${q \over {24{\varepsilon _0}}}$$

Answer

$${q \over {48{\varepsilon _0}}}$$

Answer

$${q \over {4{\varepsilon _0}}}$$

Answer

$${q \over {8{\varepsilon _0}}}$$

Electrostatics & Capacitance

A charge 'q' is placed at one corner of a cube as shown in figure. The flux of electrostatic field $\overrightarrow E $ through the shaded area is :

Choose the correct answer: