MCQ
If $w, x, y$ and $z$ are mass, length, time and current respectively, then $\frac{x^2w}{y^3z}$ has dimensional formula same as
  • electric potential
  • B
    capacitance
  • C
    electric field
  • D
    permittivity

Answer

Correct option: A.
electric potential
a
$\left[\frac{\mathrm{x}^{2} \mathrm{w}}{\mathrm{y}^{3} \mathrm{z}}\right]=\frac{\mathrm{ML}^{2}}{\mathrm{T}^{3} \mathrm{A}}$

$\Rightarrow \quad\left[\frac{\mathrm{x}^{3} \mathrm{w}}{\mathrm{y}^{3} \mathrm{z}}\right]=\frac{\mathrm{ML}^{2} \mathrm{T}^{-2}}{\mathrm{AT}}=\frac{[\mathrm{Work}]}{[\mathrm{Charge}]}$

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

The point on the pressure temperature phase diagram where all the phases co-exist is called
A particle is projected at angle $60^o$ with speed $10\sqrt 3 $, from the point $‘A’$ as shown in the figure. At the same time the wedge is made to move with speed $10\sqrt 3$ towards right as shown in the figure. Then the time after which particle will strike with wedge is  ........ $\sec$
A body is projected horizontally from the top of a tower with initial velocity $18\,m s^{-1}$. It hits the ground at angle $45^o$. What is the vertical component of velocity when it strikes the ground ......... $ms^{-1}$
A sonometer wire resonates with a given tuning fork forming standing waves with five antinodes between the two bridges when a mass of $9\,kg$ is suspended from the wire. When this mass is replaced by a mass $M,$ the wire resonates with the same tuning fork forming three antinodes for the same positions of the bridges. The value of $M$ is .... $kg$
For a diatomic gas change in internal energy for unit change in temperature for constant pressure and constant volume is ${U_1}$ and ${U_2}$ respectively. ${U_1}:{U_2}$ is
Escape velocity of an atmospheric particle which is $1000 \,km$ above the earth's surface, is ..........$km / s$ (radius of earth is $6400 \,km$ and $g=9.8 \,m / s ^2$ )
An organ pipe $P_1$ closed at one end vibrating in its first overtone. Another pipe $P_2$ open at both ends is vibrating in its third overtone. They are in a resonance with a given tuning fork. The ratio of the length of $P_1$ to that of $P_2$ is
A star is modeled as a uniform spherical distribution of matter keeping mass of star constant. How gravitational pressure on surface depends on volume of the star?
A liquid drop of diameter $D$ breaks into $27$ tiny drops. The change in energy is
Point masses $m_1$ and $m_2$ are placed at the opposite ends of a rigid rod of length $L$, and negligible  mass. The rod is to be set rotating about an axis perpendicular to it. The position of point $P$ on this rod through which the axis should pass so that the work required to set the rod rotating with angular velocity $\omega_0$ is minimum, is given by