Download App

1. Electric charges and fields — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics1. Electric charges and fields1 Mark
MCQ
A dipole is placed in an electric field as shown. In which direction will it move ?
  • A
    towards the left as its potential energy will increase.
  • ✓
    towards the right as its potential energy will decrease.
  • C
    towards the left as its potential energy will decrease.
  • D
    towards the right as its potential energy will increase.
✓

Answer

Correct option: B.
towards the right as its potential energy will decrease.
b
$\left|\vec{E}_{1}\right|>\left|\vec{E}_{2}\right|$

As field lines are closer at charge $+q$.

So, net force on the dipole acts towards right side. A system always moves to decrease it's potential energy.

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

More "M.C.Q (1 Marks)" from 1. Electric charges and fields→1. Electric charges and fields — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Match List-$I$ with List-$II$.

List-$I$ (Material) List-$II$ (Susceptibility $(x)$
$A$. Diamagnetic $I$. $\chi=0$
$B$. Ferromagnetic $II$. $ 0>\chi \geq-1$
$C$. Paramagnetic $II$I. $ x>1$
$D$. Non-magnetic $IV$. $0<\gamma<\varepsilon$ (a small positive number)

Choose the correct answer from the options given below

→
The rest mass of the photon is
→
A convex lens of power $+ 6D$ is placed in contact with a concave lens of power $-4D.$ What is the nature and focal length of the combination
→
The de-Broglie wavelength of a neutron at $27^oC$ is $\lambda$ What will be its wavelength at $927^oC$
→
The series combination of two batteries, both of the same emf $10 \mathrm{\;V},$ but different internal resistance of $20\; \Omega$ and $5\; \Omega,$ is connected to the parallel combination of two resistors $30\; \Omega$ and $\mathrm{R}\; \Omega .$ The voltage difference across the battery of internal resistance $20\; \Omega$ is zero, the value of $\mathrm{R}(\text { in } \Omega)$ is 
→
The unit for molar susceptibility is
→
What will be the angular width of central maxima in Fraunhoffer diffraction when light of wavelength $6000\,Å$ is used and slit width is $12 \times {10^{ - 5}}cm.$.......$ rad$
→
A parallel$-$plate capacitor is connected to a battery. A metal sheet of negligible thickness is placed between the plates. The sheet remains parallel to the plates of the capacitor:
→
In annihilation process, in which an electron and a positron transform into two gamma rays, which property of electric charge is displayed?
→
In the circuit shown here ${C_1} = 6\,\mu F,\;{C_2} = 3\,\mu F$ and battery $B = 20\,V$. The switch ${S_1}$ is first closed. It is then opened and afterwards ${S_2}$ is closed. What is the charge finally on ${C_2}$.......$\mu C$
→