Different Methods of Charging

How can we charge a metal sphere using induction?

In conduction the charge induced in the near surface of conductor is

Let $A$ and $B$ are two identical objects of same mass initially are charged electro statically by rubbing against each other. Let $A$ has got a positive charge and $B$ has got a negative charge, then match column I and column II.

when a body is negatively charged by friction, it means

Which of the following material cannot be charged easily by friction?

Which of the following materials can be used to check the flow of electric current?

Which of the following device is used to check whether a body is charged or not?

On rubbing an ebonite rod with fur it gets negatively charged, why? 

What is the name of the method for charging a conductor without bringing a charged body in contact with it ?

Let $A$ and $B$ are two identical objects of same mass initially are charged electro statically by rubbing against each other. Let $A$ has got a positive charge and $B$ has got a negative charge, then match column I and column II.

Look at the Figure, there are two metal spheres A and B touching each other. A charging rod is brought near the sphere A. What will be the nature of charge acquired by sphere A and sphere B after the process is complete? 

Describe how a body can be charged by: 

Conduction 

Describe how a body can be charged by: 
Induction 
 

In charging by induction how come the force of attraction overcomes the repulsive force between them?

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

An electrical charge can be transferred from a charged object to another through a ________________.

When a charged glass rod is brought near a charged plastic straw rubbed with polythene

When a plastic refill is rubbed with polythene, it acquires a small ___________ charge.

Which of the following cannot be charged easily by friction?

Assertion: If a point charge q is placed in front of an infinite grounded conducting plane surface, the point charge will experience a force.

Reason: This force is due to the induced charge on the conducting surface which is at zero potential.