Download App

STD 12 - 1. Electric charges and fields — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 1. Electric charges and fields4 Marks
MCQ
The unit of electric permittivity is
  • A
    $Volt/m^2$
  • B
    $Joule/coulomb$
  • ✓
    $Farad/m$
  • D
    $Henry/m$
✓

Answer

Correct option: C.
$Farad/m$
c
(c) $C = \frac{{{\varepsilon _0}A}}{d}$ $⇒$ ${\varepsilon _0} = \frac{{Cd}}{A}$ $⇒$ ${\varepsilon _0}$ $⇒$ $\frac{{Farad \times m}}{{{m^2}}} \to \frac{F}{m}$

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

One turn of insulated wire in the form of a planar square frame with side $l = 0.2\,m$ and resistance $1\,\Omega $ is placed in a uniform magnetic field perpendicular to the magnetic field lines. The current passing through the turn when magnetic field starts to decrease at a constant rate of $0.1\,T/s$ is......$mA$
→
The variation of magnetic susceptibility $(\chi )$with temperature for a diamagnetic substance is best represented by
→
If a graph is plotted taking the temperature in Fahrenheit along $Y-$axis and the corresponding temperature in Celsius along the $X-$axis, it will be a straight line
→
Einstein's photoelectric equation states that ${E_k} = h\nu - \phi $. In this equation ${E_k}$ refers to
→
Consider the diffraction pattern obtained from the sunlight incident on a pinhole of diameter $0.1\, \mu m$. If the diameter of the pinhole is slightly increased, it will affect the diffraction pattern such that :
→
An $npn$ transistor operates as a common emitter amplifier, with a power gain of $60\, dB$. The input circuit resistance Is $100\,\Omega $ and the output load resistance is $10 \,k\,\Omega $. the common emitter current gain $\beta $ is
→
A steady current $I$ flows through a wire of radius $r$, length $L$ and resistivity $\rho$. The current produces heat in the wire. The rate of heat loss in a wire is proportional to its surface area. The steady temperature of the wire is independent of
→
$A$ man weighing $80\, kg$ is standing at the centre of a flat boat and he is $20\, m$ from the shore. He walks $8\, m$ on the boat towards the shore and then halts. The boat weight $200\, kg$. ........ $m$ far is he from the shore at the end of this time.
→
Calculate the work done, if a wire is loaded by $'Mg'$ weight and the increase in length is $'l'$
→
In an experiment of photoelectric effect the stopping potential was measured to be $V_{1}$ and $V_{2}$ with incident light of wavelength $\lambda$ and $\frac \lambda 2$ respectively. The relation between $V_{1}$ and $V_{2}$ is
→