Electric Field — MCQ Practice

A point charge $Q = +2.0 \times 10^{-9}\text{ C}$ is placed at the origin. What is the magnitude and direction of the electric field at a point $P$ located at $(0, 0.5)\text{ m}$?

Two point charges, $+q$ and $-q$, are placed at positions $(a, 0)$ and $(-a, 0)$ respectively. What is the direction of the electric field at a point $(0, y)$ on the y-axis?

An electric dipole of dipole moment $\vec{p}$ is placed in a uniform electric field $\vec{E}$. The torque acting on the dipole is maximum when the angle between $\vec{p}$ and $\vec{E}$ is:

Which of the following statements about electric field lines is INCORRECT?

An infinite plane sheet of charge has a uniform surface charge density $\sigma$. The magnitude of the electric field produced by this sheet at a point near it is:

An electric dipole is placed in a non-uniform electric field. Which of the following statements is true?