PHYSICS [5 Mark Question Answer]

Nature of bar	Action on the compass needle
	North pole	South pole
(i) Glass	No action	No action
(ii) Iron ore	Attraction	Attraction
(iii) North pole of a bar magnet	Repulsion	Attraction
(iv) The south pole of a bar magnet	Attraction	Repulsion

An electroscope is a device used to detect the presence of charge and the nature of a charge on the body.
The four stages of the charging a gold leaf electroscope by induction are :
(i) Bring a positively charged rod near the cap of an electroscope. The cap will acquire a negative charge on it by induction. The leaves will diverge
(ii) Earth the electroscope by touching the cap will finger.
(iii) Remove the finger and keep the positively charged rod as such.
(iv) Now, take away the rod. The leaves will diverge because of charges induced by induction.