What are electric field lines? Give important properties of electric field lines

Question

What are electric field lines? Give important properties of electric field lines. Define electric flux phi E. Give formula and unit of electric flux. Explain Gauss's law. Find the divergence and curl of electric field. A thin spherical shell of radius R has a charge +Q evenly distributed over its surface. Use Gauss's law to find the electric field both inside and outside the shell. Use Gauss's law to find the field outside and inside a uniformly charged solid sphere of radius R and total charge Q. Suppose the electric field in some region is found to be E vector = kr^3 r. in spherical coordinates (k is some constant). (a) Find the charge density rho. (b) Find the total charge contained in a sphere of radius R, centered at the origin. (Do it two different ways.) Use Gauss's law to find the electric field (E) a distance (r) from a line of positive charge of infinite length (L) and constant charge per unit length (lambda) (as shown in Figure). A long cylinder carries a charge density that is proportional to the distance from the axis: rho = ks, for some constant k. Use Gauss's law to find the electric field inside this cylinder. Calculate the electric field due to an infinite cconducting sheet of surface charge density sigma. An infinite plane (non conducting) carries a uniform surface charge (sigma). Use Gauss's law to find its electric field. Two infinite non conducting parallel planes carry equal but opposite uniform charge densities plusminus as shown in Figure 1. Find the field in each of the three regions: (i), to the left of both, (ii) between them, (iii) to the right of both.

Explanation / Answer

1.Electric field lines :- Electric field lines are imaginary lines along which small positive test charge would move.The force experienced by positive test charge is always in the direction of tangent to the field lines.

Properties of electric field lines:

1.They start on positive charge and end on negative charge.

2.They never cross.

3.They are closer together in regions where the field is stronger and further apart where field the field is weak.

4. They begin and end perpendicularly on charge surface . etc

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.