List of top Physics Questions on The Electric Field Due to an Electric Dipole asked in CUET (UG)

An electric dipole of moment \(\vec{p}\) is placed in a uniform electric field \(\vec{E}\). Then
  • [(i)] the torque on the dipole is \(\vec{p}\times\vec{E}\).
  • [(ii)] the potential energy of the system is \(\vec{p}\cdot\vec{E}\).
  • [(iii)] the resultant force on the dipole is zero.
Choose the correct option.
An electric dipole of moment \(P\) is placed along the direction of electric field \(E\). The work done in deflecting the dipole through \(180^\circ\) is equal to

Match List-I with List-II: 

List-IList-II
A. The current lags behind the e.m.f. by \( \frac{\pi}{4} \) in phaseI. A.C. circuit containing only an inductor
B. The e.m.f. lags behind the current by \( \frac{\pi}{4} \) in phaseII. A.C. circuit with resistance and inductance in series
C. The current lags behind the e.m.f. in phase by \( \frac{\pi}{2} \)III. A.C. circuit containing only a capacitor
D. The e.m.f. lags behind the current in phase by \( \frac{\pi}{2} \)IV. A.C. circuit with resistance and capacitor in series
For an electric dipole in a non-uniform electric field with dipole moment parallel to direction of the field, the force $F$ and torque $\tau$ on the dipole respectively are __________. Fill in the blank with the correct answer from the options given below.