Charging by friction is accompanied by loss or gain of electrons. State which body loses electrons when a glass rod is rubbed with silk,

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Solution

If any two substances in this list are rubbed against one another, the one higher in the order gets positively charged.
Glass when rubbed with silk, acquires positive charge because glass has higher frictional order than silk.
The body having greater frictional order will lose electron and it will acquire positive charge because of the deficiency of the electron.
The electrons will move from glass rod to the silk so due to the excess of electrons it will acquire negative charge.

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Similar questions

In each of the following cases, state which body loses electrons :

(a) A glass rod when rubbed with silk.

(b) An ebonite rod when rubbed with fur.

Write true or false for each statement:

(a) The number of electrons and protons in an atom are same.

(b) If the charge is not in motion, we call it static electricity.

(d) When an ebonite rod is rubbed with fur, the electrons move from ebonite to fur.

(e) When a glass rod is rubbed with the dry silk cloth, the electrons move from glass to silk.

(f) The cap of gold leaf electroscope is made of copper.

(g) If a glass rod rubbed with silk is brought near the cap of a negatively charged electroscope, the divergence of leaves will decrease.

(h) In induction, a positively charged body can make an uncharged body positively charged.

(i) A lighting conductor saves the building from lighting.

(j) When a comb is rubbed with dry hair both comb and paper get similarly charged.

(k) A glass rod rubbed with silk repels an ebonite rod rubbed with fur.

(l) When an ebonite rod is rubbed with fur, the protons move from the ebonite rod to the fur.

(m) A conductor has a large number of free electrons.

(n) An ebonite rod can be charged by touching it with a charged copper rod.

(o) To find whether a body is charged or not, an uncharged electroscope is used.

(p) To find whether the charge on a body is positive or negative, an uncharged electroscope is used.

(q) If a negatively charged rod is brought near a negatively charged pith ball electroscope, the pith ball will be stuck with the rod.

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