Explain the electroscope construction and working.
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Answers
Answer:
CONSTRUCTION OF AN ELECTROSCOPE : An electroscope consists of a metal rod with a knob at the top and a pair of thin metal leaves at the bottom. The rod is inserted in a one hole rubber stopper which fits into a flask. The flask contains the lower part of the rod and the metal leaves.
Working
The electroscope is an early scientific instrument used to detect the presence of electric charge on a body. It detects charge by the movement of a test object due to the Coulomb electrostatic force on it. The amount of charge on an object is proportional to its voltage. The accumulation of enough charge to detect with an electroscope requires hundreds or thousands of volts, so electroscopes are used with high voltage sources such as static electricity and electrostatic machines. An electroscope can only give a rough indication of the quantity of charge; an instrument that measures electric charge quantitatively is called an electrometer.
Answer:
Electroscope is a device used to detect electric charge in an object.
Explanation:
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.
Working:
The working principle of an electroscope is based on the atomic structure of elements, charge induction, the internal structure of metal elements and the idea that like charges repel each other while unlike charges attract each other.