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Electric lines of force always leave an ...

Electric lines of force always leave an equipotential surface

A

at any angle to the surface

B

parallel to the surface

C

perpendicular to the surface

D

Parallel or perpendicular to the surface

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The correct Answer is:
C
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Consider the three statements in context of electrostatic field lines. STATEMENT-1 : Electrostatic field lines are continuous curves in space. STATEMENTS-2 : Electrostatic field lines are always perpendicular to equipotential surface. STATEMENT-3 : A charge when released in electrostatic field moves along electrostatic field lines.

S_1 : When a positively charged particle is released in an electric field , in its subsequent motion,it may or may not move along the electric field line passing through the point it has been released. S_2 : In electrostatic, conductors are always equipotential surfaces. S_3 : The flux through a closed Gaussian surface is non-zero. The electric field at some point on the Gaussian surface may be zero.

Define an equipotential surface. Draw equipotential surfaces : (i) in the case of single point charge and (ii) in a constant electric field in Z -direction. Why the equpotential surfaces about a single charge are not equidistant ? (iii) Can electric field exist tangential to an equipotential surface ? Given reason.

Which of the following statements are correct. (a) Electric lines of force are just imaginary lines (b) Electric lines of force will be parallel to the surface of conductor (c ) If the lines of force are crowded, then field is strong (d) Electric lines of force are closed loops

Electric lines of force about negative point charge are

Write two properties of equipotential surfaces.

AAKASH SERIES-ELECTRIC CHARGES AND FIELDS-Exercise-I
  1. If the electric lines of force are as shown in the figure and electric...

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  2. A point charge is kept at the centre of a metallic insulated spherical...

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  3. Electric lines of force always leave an equipotential surface

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  4. Three positive charges of equal value q are placed at the vertices of ...

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  5. The property of the electric line of force (a) The tangent to the li...

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  6. A force between the two stationary charges separated by certain distan...

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  7. Which of the following statements are correct. (a) Electric lines of...

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  8. For a given surface, the Gauss's law stated as int E.dS = 0. From this...

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  9. It is not convenient to use a spherical Gaussian surface to find the e...

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  10. An ellipsoidal cavity is carved with in a perfect conductor. A positiv...

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  11. If a charge is enclosed by the surface of the sphere then total flux e...

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  12. A metallic shell has a point charge q kept inside its cayity. Which of...

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  13. A charge of Q coulomb is placed on a solid piece of metal of irregular...

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  14. Gauss.s law is true only if force due to a charge varies as:

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  15. An electric diple is put in north-south direction in a sphere filled w...

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  16. Two small spheres each carrying a charge q are placed. Distance r apar...

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  17. Find the total flux due to charge q associated with the given hemisphe...

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  18. A: A metallic shield in the form of a hollow shell may be built to blo...

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  19. A thin conducting spherical shell of radius R has charge Q spread unif...

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  20. An electric dipole placed in a uniform electric field experiences, in ...

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