Embibe Experts Solutions for Chapter: Electrostatics, Exercise 1: AP EAPCET - 20 Aug 2021 Afternoon

When a number of charged liquid drops coalesce, which of the following quantity does not change?

Two charges $10 \mathrm{\mu C}$ and $-10 \mathrm{\mu C}$ are placed at points A and B separated by a distance of $10 \mathrm{cm}$. Find the electric field at a point P on the perpendicular bisector of AB, at a distance of $12 \mathrm{cm}$ from its mid-point.

Gauss's law helps in:

Charge on the outer sphere is $q$ and the inner sphere is grounded. The charge on the inner sphere is $q^{\text{'}}$, for $\left(r_2>r_1\right)$. Then

Four capacitors with capacitances $C_1=1 \mathrm{\mu F},C_2=1.5 \mathrm{\mu F}$, $C_3=2.5 \mathrm{\mu F}$ and $C_4=0.5 \mathrm{\mu F}$ are connected as shown and are connected to a $30$ volt source. The potential difference between points $a$ and $b$ is:

Two charges $8 \mu \mathrm{C}$ each are placed at the comers A and B of an equilateral triangle of side $0.2 \mathrm{m}$ in air. The electric potential at the third comer C is

Which statement(s) among the following are incorrect:
(i) A negative test charge experiences a force opposite to the direction of the field.
(ii) The tangent drawn to a line of force represents the direction of electric field.
(iii) The electric field lines never intersect.
(iv) The electric field lines form a closed loop.

What is the angle between maximum value of potential gradient and equipotential surface?