Electric Field

Discuss about electrostatics.

What is test charge and why it is made neglibile small while testing the effect of the source charge?

What are the significance of electrical field lines?

A small metal ball is suspended in an uniform electric field with the help of an insulated thread. If a high energy $\mathrm{X}$-ray beam falls on the ball, then the ball

The change in force experienced by a static charge due to an accelerated charge is not instantaneous. Explain.

Which one of the following statement is not correct about electric field?

An electric charge ${10}^{–3}\mathrm{\mu }\mathrm{C}\mathrm{ }$ is placed at the origin$\mathrm{ }\left(0,\mathrm{ }0\right)$. Two points $\mathrm{A}$ and $\mathrm{B}$ are situated at $\left(\sqrt{2}\mathrm{¸}\sqrt{2}\right)$ and $\left(2,\mathrm{ }0\right)$ respectively. The potential difference between the points $\mathrm{A}$ and $\mathrm{B}$ will be

A small sphere of mass $2\mathrm{ g}$ having charge $5\mathrm{ }\mathrm{\mu C}$ is suspended using an insulated string as given in figure. Find the angle made by string with vertical if it is placed in electric field of magnitude $2000$ $\mathrm{V} {\mathrm{m}}^{-1}$ towards right

A vanishingly small point charge $q$ experiences a force $\overrightarrow{F}$ due to a source charge present in space. The ratio $\frac{\overrightarrow{F}}{q}$ is:

A much higher value of a test charge does not affect:

In order to find the electric field due to a point charge in space, the test charge should be negligibly small? Explain with reason.

What do you mean by a test charge?

The electric field that can balance a charged particle of mass $\mathrm{ }3.2\times {10}^{-27} \mathrm{kg}$ is (Given that the charge on the particle is $1.6\times {10}^{-19}\mathrm{ }\mathrm{C}$)

A charge $\sqrt{10} \mu C$ is placed at $\left(1, 0\right)$ and another charge $-25\mu C$ is placed at $\left(4, 0\right).$ Find Electric field vector at point $\left(0, 3\right).$

The magnitude of point charge due to which the electric field 30 cm away from it has the magnitude $2 \mathrm{N-}{\mathrm{C}}^{-1}$ will be

If a charge is moving along the direction of coulomb's force of an electric field,

The electric field inside a conductor

The diagram shows a uniform electric field in which the lines of equal potential are spaced $2.0 \mathrm{cm}$ apart. What is the value of the electric force which is exerted on a charge of $+5.0\mathrm{ }\mathrm{\mu }\mathrm{C}$ when placed in the field?

The potential of the electric field produced by a point charge at any point $\left(x,\mathrm{ }y,\mathrm{ }z\right)$ is given by $V=3x^2+5$, where $x$, $y$ and $z$ are in metres and $V$ is in volts. The intensity of the electric field at $\left(-2,\mathrm{ }1,\mathrm{ }0\right)$ is

A thin conducting ring of the radius $R$ is given a charge $+Q$. The electric field at the centre $O$ of the ring due to the charge on the part $AKB$ of the ring is $E$. The electric field at the centre due to the charge on the part $ACDB$ of the ring is