Which type of deposits do banks primarily use to create money?

Two positive charges $q_2$ and $q_3$ fixed along the $y-\mathrm{axis}$, exert a net electric force In the $+x$ direction on a charge $q_1$, fixed along the $x-\mathrm{axis}$ as shown. If a positive charge $Q$ Is added at$\left(x, 0\right)$, the force on $q_1$,

Choose the correct option and fill in the blanks. (atom, molecule, steel, copper, plastic, inflated balloon, charged object, gold).

A _____ can be detected with an electroscope.

The diagram shows the arrangement of three small uniformly charged spheres $A$, $B$ and $C$. The arrows indicate the direction of the electrostatic forces acting between the spheres (for example, the left arrow on sphere $A$ indicates the electrostatic force on sphere $A$ due to sphere $B$). At least two of the spheres are positively charged. Which sphere, if any, could be negatively charged?

Five Styrofoam balls are suspended from insulating threads. Several experiments are performed on the balls and the following observations are made,
(i) Ball $A$ repels $C$ and attracts $B$.
(ii) Ball $D$ attracts $B$ and has no effect on $E$.
(iii) A negatively charged rod attracts both $A$ and $E$.
An electrically neutral Styrofoam ball gets attracted if placed nearby a charged body due to induced charge. What are the charges, if any, on each ball?

The figure presents a crystal unit of cesium chloride,$\mathrm{CsCl}$. The cesium atoms, represented by open circles are situated at the comers of a cube of side $0.40 \mathrm{nm}$, whereas $\mathrm{Cl}$ atom is situated at the center of the cube. The $\mathrm{Cs}$atoms are deficient in one electron while the $\mathrm{Cl}$ atom carries an excess electron. What is the net electric field on the $\mathrm{Cl}$ atom due to eight $\mathrm{Cs}$ atoms ?