what is an electroscope? where is it used? why is it used? correct answer will be marked brainliest, thanks and follow.. wrong answer will be reported so others can answer...
Answers
Answer:
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.
Answer:
What is an Electroscope?
An electroscope is a scientific device that is used to detect the presence of an electric charge on a body. In the year 1600, British physician William Gilbert invented the first electroscope with a pivoted needle called versorium.
Electroscope detects the charge based on the
which causes the motion of test charge. Electroscope can be regarded as a crude voltmeter as the electric charge of an object is equal to its capacitance. An instrument that is used to measure the charge quantitatively is known as an electrometer.Working of Electroscope
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.
An electroscope is made up of a metal detector knob on top which is connected to a pair of metal leaves hanging from the bottom of the connecting rod. When no charge is present the metals leaves hang loosely downward. But, when an object with a charge is brought near an electroscope, one of the two things can happen.
When the charge is positive, electrons in the metal of the electroscope are attracted to the charge and move upward out of the leaves. This results in the leaves to have a temporary positive charge and because like charges repel, the leaves separate. When the charge is removed, the electrons return to their original positions and the leaves relax.When the charge is negative, the electrons in the metal of the electroscope repel and move toward the leaves on the bottom. This causes the leaves to gain a temporary negative charge and because like charges repel, the leaves again separate. Then when the charge is removed, the electrons return to their original position and the leaves relax.
An electroscope responds to the presence of a charge through the movement of electrons either into or away from, the leaves. In both cases, the leaves separate. It is important to note that the electroscope cannot determine if the charged object is positive or negative.
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