Fill in the blanks:

(a) Like charges _ while unlike charges _.

(b) Mercury is a _ of electricity while pure water is _ of electricity.

(c) An ebonite rod when rubbed with fur acquires the _ charge.

(d) When an uncharged conductor is brought in contact with the disc of a gold leaf electroscope, it leaves _.

(e) Charge is shared in charging a conductor by the method of ___.

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Solution

(a) Like charges repel while unlike charges attract.
(b) Mercury is a conductor of electricity while pure water is an insulator of electricity.
(c) An ebonite rod when rubbed with fur acquires the negative charge.
(d) When an uncharged conductor is brought in contact with the disc of a gold leaf electroscope, its leaves will remain unchanged.
(e) Charge is shared in charging a conductor by the method of conduction.

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Similar questions

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.

You are provided with a negatively charged gold leaf electroscope. What happens when an ebonite rod rubbed with fur is brought near the disc of the electroscope?

Match the following:

Column A Column B

(a) Two like charges (i) negative charge

(b) Two unlike charges (ii) repel

(d) Silk is an (iv) attract

(e) Ebonite rod rubbed with fur acquires (v) conductor

Q. When an ebonite rod is rubbed with fur, the charge acquired by the fur is __________.

Q. A gold leaf electroscope is given a positive charge so that its leaves diverge. How is the divergence of leaves affected, when an uncharged rod is brought near its disc ?

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