Physics, asked by diwash, 1 year ago

explain the working of an electroscope

Answers

Answered by harshs13
2

Answer:

Electroscope is used to detect and measure electric charges

Explanation:

•In an uncharged electroscope, the leaves hang straight down.

•When a charged object touches the metal knob, electric charges travel down the rod and into the leaves.

•The leaves spread apart, indicating the presence of an electric charge.

•Since the charge on both leaves is the same the leaves repel each other and spread out.

Answered by Rijula
2

Answer:

An 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.

The electroscope was the first electrical measuring instrument. The first electroscope was a pivoted needle (called the versorium), invented by British physician William Gilbert around 1600.[1][2] The pith-ball electroscope and the gold-leaf electroscope are two classical types of electroscope[2] that are still used in physics education to demonstrate the principles of electrostatics. A type of electroscope is also used in the quartz fiber radiation dosimeter. Electroscopes were used by the Austrian scientist Victor Hess in the discovery of cosmic rays.

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