Electric Field

ABC is an equilateral triangle whose each side is $0.05 \mathrm{m}$. At A and B are placed charges of$+\frac{50}{3}\times {10}^{-9} \mathrm{C}$ and $-\frac{50}{3}\times {10}^{-9} \mathrm{C}$ respectively. What will be magnitude and direction of the resultant field at C?

Conduction electrons are almost uniformly distributed within a conducting plate. When placed in an electric field $\overrightarrow{E}$, the electric field within the plate

A charge $Q$ is uniformly distributed over a semi-circular ring of radius $R$. A point charge $q$ is kept on the centre of semi-circular ring as shown. The electrostatic force experienced by the point charge in given arrangement is

In the following figure, the electric field on the y-axis will be maximum at $y=$

When electric field is applied to the electrons in a conductor it starts

The force exerted by an electric field on a charge of $+10 \mathrm{\mu C}$ at a point is $16 \mathrm{x} {10}^{-4} \mathrm{N}.$ The intensity of electric field is
 

In a given region, electric potential varies with position as $V\left(x\right)= 3+2x^2$.

Identify which of the following statements is correct.

Value of electric field for which $e^{-}$ will go undeflected will be _____.

Here $e$ and $m$are charge and mass of electron.

Why electric field is zero at centre of regular polygon?

A point charge $-50 \mathrm{\mu C}$ is located at $\left(2,3\right)$. Find electric field at $\left(8,-5\right)$.

A point charge $-50 \mathrm{\mu C}$ is located at $(2, 3)$. Find electric field at $(8, -5)$.

A charged particle of mass $m$ and charge $q$ is released from rest in an uniform electric field $E$. Neglecting the effect of gravity, the kinetic energy of the charged particle after $t$ seconds is

A simple pendulum consists of a small sphere of mass $m$ suspended by a thread of length $l$. The sphere carries a positive charge $q$. The pendulum is allowed to do small oscillations in a uniform electric field $E$ with direction vertically upwards. The time period of oscillation is

Two charges $\sqrt{3}\mathrm{C}$ and $q \mathrm{C}$ are placed at $\left(2,0\right)$ and $\left(0,2\right)$. The direction of intensity of electric field at $\left(2,2\right)$ makes an angle $30°$ with $y‐$axis then $q$ is :

The force experienced by a proton moving in an electric field of intensity $3E$ is ($e$ is the charge of the electron)

Two charges of $-12 \mu \mathrm{C}$ and $18 \mathrm{\mu C}$ are separated by a distance of $42 \mathrm{cm}$. The null point from $-12 \mu \mathrm{C}$ will be at a distance of

Two unlike charges $Q_1$ and $Q_2$ are positioned at point $\left(0,0\right)$ and $\left(2 \mathrm{mm},0\right)$ as shown in the figure. The graph between the field strength at any point on the $x$-axis, to the right of the charge $Q_2$ varies according to a law that is represented schematically in the figure (2). The field strength is assumed to be positive if its direction coincides with the positive direction on the $x$-axis. The field strength is zero at point $B\left[\frac{4\sqrt{2}}{2\sqrt{2}-1} \mathrm{mm},0\right]$ and is maximum at point $C$. The charges $Q_1$ and $Q_2$ are respectively

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A block of mass $m$ and charge $q$ is connected to a point $O$ with help of an inextensible string. The system is on a horizontal table. An electric field is switched on in direction perpendicular to string. What will be tension in string when it become parallel to electric field?

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A charge particle is released from rest in an uniform electric field for $2 \mathrm{s}$ its $\mathrm{KE}$ is $20 \mathrm{J}$. If the same charge particle from state of rest is allowed to accelerate for $3 \mathrm{s}$, its $\mathrm{KE}$ will be