Write true or false for this statement:
If a glass rod rubbed with silk is brought near the cap of a negatively charged electroscope, the divergence of leaves will decrease.

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Solution

When a glass rod is rubbed with dry silk cloth, the electrons move from glass to silk. Thus the glass rod loses electrons and becomes positively charged. On touching the positively charged body (glass rod) to the negatively charged electroscope, the divergence of leaves will decrease.
Hence, the statement given in the question is true.

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Similar questions

An ebonite rod rubbed with fur is brought near the disc of a negatively charged gold-leaf electroscope. What will happen to the divergence of the gold leaves?

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.

Q. You are provided with a negatively charged gold leaf electroscope. What is the effect on the gold leaves when a glass rod rubbed with silk is brought near the disc of electroscope?

Q. When a charged rod is brought near the disc of a negatively charged gold leaf electroscope, it is observed that the divergence of leaves decreases. What inference do you draw about the charge on the rod ?

Q. You are provided with s positively charged gold leaf electroscope. State what happens when:
1) A glass rod rubbed with a silk is brought near the disc of electroscope.
2) A glass rod rubbed with silk is rolled on the disc of electroscope.
3) An uncharged metal rod is brought near the disc of electroscope.

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Write true or false for this statement: If a glass rod rubbed with silk is brought near the cap of a negatively charged electroscope, the divergence of leaves will decrease.

Write true or false for this statement:
If a glass rod rubbed with silk is brought near the cap of a negatively charged electroscope, the divergence of leaves will decrease.