cube of side 4 m. what is the UNITS) . 1. A charge -2C is sitting at the center

Question

cube of side 4 m. what is the UNITS) . 1. A charge -2C is sitting at the center of a each face of the cube: (pay attention to o V/m (b) 1/(Geo) Vm (e) 16/eo Nm2/C (d) none of them are Figure 1: find electrie flux through each face of the cube * 2. which one below are true/correct statement for a Conductor in electrostatic equilibrium i field vector is zero inside a conductor. (otherwise the free charges will move : not (1) Free charges always resides on the surfaces of the conductor static such a way the field cancel inside the conductor) (3) Electric field just outside on the conductor o/(20) , where is surface charge density. more.If the conductor is placed in an external electric field the free charges move is perpendicular to the surface and value is for smallest radius of curve on the surface of conductor . That means the sharp edges on charges conductor has large charge density (a) 1,2,4 only (b) 1,3,4 only (e) all of them are true (d) none of the options are correct 3. Which of the following graphs would best represent the electric field E (x-component electric field) of a ring as a function of x. The ring has positive charge Q tributed) , and it lies on y-z plane, with center at the origin ? (unifomly dis- Figure 2: electric field of a ring

Explanation / Answer

1. d. none of them are correct

2.a.1,2and4 only

3.in this question graphs are missing so we cannot tell which of the graph best represent electric field

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