MCQ
Given below are two statements.

Statement $I$ : Electric potential is constant within and at the surface of each conductor.

Statement $II$ : Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.

In the light of the above statements, choose the most appropriate answer from the options give below.

  • Both statement $I$ and statement $II$ are correct
  • B
    Both statement $I$ and statement $II$ are incorrect
  • C
    Statement $I$ is correct but statement $II$ is incorrect
  • D
    Statement $I$ is incorrect but and statement $II$ is correct

Answer

Correct option: A.
Both statement $I$ and statement $II$ are correct
a
Statement $- I$, true as body of conductor acts as equipotential surface.

Statement $-2$ True, as conductor is equipotential. Tangential component of electric field should be zero. Therefore electric field should be perpendicular to surface.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Hole is:
Assertion : In meter bridge experiment, a high resistance is always connected in series with a galvanometer.
Reason : As resistance increases current through the circuit increases.
Assertion : The maximum refractive index of liquid for total internal reflection of the ray passing through the prism as shown in figure must be $\sqrt 2$.
 
Reason: Here, critical angle is $45^o$

An equilateral prism deviates a ray through $40^o$ for two angles of incidence differing by $20^o$. The possible angles of incidences are :
$A$ thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate with the curved surface downwards. Monochromatic light is incident normally from the top. The observed interference fringes from this combination do not follow one of the following statements.
Let $n_r$ and $n_b$ be the number of photons emitted by a red bulb and a blue bulb, respectively, of equal power in a given time:
The unit of electric field is not equivalent to
$A$ Wheatstone's bridge is balanced with a resistance of $625\, \Omega$ in the third arm, where $P, Q$ and $S$ are in the $1^{st}, 2^{nd}$ and $4^{th}$ arm respectively. If $P$ and $Q$ are interchanged, the resistance in the third arm has to be increased by $51\,\Omega$ to secure balance. The unknown resistance in the fourth arm is ............. $\Omega$
The time required to pass the light through a glass slab of $2 mm$ thick is (${\mu _{glass}} = 1.5$)
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 ...... .