If a body is charged by rubbing it, its weight:

Given below are four statements: 

Choose the correct option:

A metallic particle having no net charge is placed near a finite metal plate carrying a positive charge. The electric force on the particle will be

1.  towards the plate

2.  away from the plate

3.  parallel to the plate

4.  zero.

A positive point charge Q is brought near an isolated metal cube.

(a) The cube becomes negatively charged.

(b) The cube becomes positively charged.

(c) The interior becomes positively charged and the surface becomes negatively charged.

(d) The interior remains charge free and the surface gets nonuniform charge distribution.

Choose the correct option 

1. (a) , (b) 

2. (b) , (c) 

3. (d) only

4. (a) , (d) 

A large nonconducting sheet M is given a uniform charge density. Two uncharged small metal rods A and B are placed near the sheet as shown in the figure.

(a) M attracts A
(b) M attracts B
(c) A attracts B
(d) B attracts A

Choose the correct option 

1. (a) , (b) 

2. (c) , (d)

3. (a) , (d)

4. All of the above

Two metal spheres of capacitances C₁ and C₂ carry some charges. They are put in contact and then separated. The final charges Q₁ and Q₂ on them will satisfy

1.    \(\frac{\mathrm{Q}_{1}}{\mathrm{Q}_{2}}<\frac{\mathrm{C}_{1}}{\mathrm{C}_{2}}\)

2.    \(\frac{\mathrm{Q}_{1}}{\mathrm{Q}_{2}}=\frac{\mathrm{C}_{1}}{\mathrm{C}_{2}}\)

3.    \(\frac{\mathrm{Q}_{1}}{\mathrm{Q}_{2}}>\frac{\mathrm{C}_{1}}{\mathrm{C}_{2}}\)

4.    \(\frac{\mathrm{Q}_{1}}{\mathrm{Q}_{2}}<\frac{\mathrm{C}_{2}}{\mathrm{C}_{1}}\)