What is an electroscope What is it used for?
electroscope, instrument for detecting the presence of an electric charge or of ionizing radiation, usually consisting of a pair of thin gold leaves suspended from an electrical conductor that leads to the outside of an insulating container.
How does a leaf electroscope work?
A negatively charged rod near the plate attracts positive charges at the plate and repels negative ones to the leaves. The leaves repel each other and diverge to indicate the presence of a charge. The leaves would again diverge if instead a positively charged rod were brought near the plate.
What are the three types of electroscope?
There are three classical types of electroscopes: pith-ball electroscope (first), gold-leaf electroscope (second), and needle electroscope (third).
What is gold leaf electroscope used for?
What is Gold Leaf Electroscope? A type of electroscope that consists of two gold leaves is used for detecting the electrical charge of the body and for the classification of its polarity.
What are the advantages of electroscope?
Uses of Electroscope Detect the presence of ionizing radiation or electric charge on a body. Identify and compare the magnitude of charges. Calculate the force between two charges. Detect the nature and relative amount of charges.
What is construction of electroscope?
Construction and working : An electroscope has a metal rod with thin metal strips or leaf attached to it at the bottom. At the top, the rod enters in a cup. The bottom part of the rod and leaf are enclosed in a glass bottle for protection.
What is electroscope explain its construction and working?
Electroscope is a device used to detect electric charge in an object. Construction. Take a glass container. Cover the glass jar with a cardboard and make a small hole in it to insert a metal wire or a metallic paper clip. Insert a metal wire or a metallic paper clip inside it.
Who invented the electroscope?
William GilbertElectroscope / Inventor
What is the principle of gold leaf electroscope?
A gold-leaf electroscope is used for detecting electric charge present in a body and identifying its polarity. Its operation is based on the principle of electrostatic induction and like charge repulsion.
What is an electroscope Ncert?
Electroscope. It is an instrument used to detect electric charges.