MCQ
Electric charge is measured in:
  • Coulombs
  • B
    Amperes
  • C
    Volts
  • D
    Watts

Answer

Correct option: A.
Coulombs

The standard unit of charge is coulomb $(C)$. Here ampere is the unit of current, volts is the unit of electric potential difference and watts is the unit of power.

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

An infinite nonconducting sheet of charge has a surface charge density of $10^{-7}\  C/m^2$. The separation between two equipotential surfaces near the sheet whose potential differ by $ 5\,V$  is
Unit of radioactivity is Rutherford. Its value is
An electric dipole is placed in a uniform electric field. The net electric force on the dipole.
A telescope is used to observe two objects at a distance of $z = 10\ km$ which are $s = 0.12\ m$ apart and illuminated by light of wavelength $\lambda  = 600\ nm$ .  Estimate the diameter of the objective lens of the telescope if it can just resolve the two objects. Assume diameter $D >  > \lambda $ and separation between objects $s < < z$ .....$cm$
When electron remains between orbits, its momentum is:
The energy of a photon is $E = hv$ and the momentum of photon $p = \frac{h}{\lambda }$, then the velocity of photon will be
A microscope objective gathers light over a cone of semi-vertex $30^o$ and used visible light of wavelength $5500\mathop A\limits^0 $. Its resolving limit is
Match List $I$ with List $II$.

List $I$ (Spectral Lines of Hydrogen for transitions from) List $II$ (Wavelengths ($nm$))
$A$ $n_2=3 \text { to } n_1=2$ $I$ $410.2$
$B$ $n_2=4 \text { to } n_1=2$ $II$ $434.1$
$C$ $n_2=5 \text { to } n_1=2$ $III$ $656.3$
$D$ $n_2=6 \text { to } n_1=2$ $IV$ $486.1$

Choose the correct answer from the options given below:

A step index fibre has a relative refractive index of $0.88\%$. What is the critical angle at the corecladding interface.......$^o$
A narrow, paraxial beam of light is converging towards a point I on a screen. A plane parallel plate of glass of thickness $t$, and refractive index $\mu$ is introduced in the path of the beam. The convergence point is shifted by