In figure a close surface encloses two of the four positively charged particles. Which of the particles contribute to the elctric field at point P on the surface:

Gauss's law and Coulomb's law , although expressed in different forms , are equivalent ways of describing the relation between charge and electric field in static conditions . Gauss's law is epsilon_(0) phi = q_(encl) ,when q(encl) is the net charge inside an imaginary closed surface called Gaussian surface. The two equations hold only when the net charge is in vaccum or air . A Gaussian surface encloses two of the four positively charged particles. The particles that contribute to the electric field at a point P on the surface are

Which of the following are positively charged particles?

The charged particle in an atom that contributes positive charge is 'electron'.

Figure shown a closed surfce which intersects a conducting sphere. If a positive charge is placed at the point P, the flux of the electric field through the closed surface

As shown in figure a closed surface intersects a spherical conductor. If a negative charge is placed at point P. What is the nature of the electric flux coming out of the closed surface?

Consider the Gaussian surface that surrounds parts of the charge distribution shown in figure. Then the contribution to the electric field at point P arises from charges

A conducting sphere S_(1) intersects a closed surface S_(2) as shown in the figure.A positive charge q is placed at a point P .What is the value of electric flux through the surface S_(2) ? q P

Three point charges are placed as shown in the figure. S is a gaussian surface phi is the net flux passing through surface A and E be the electric field at point P on the surface, then