Imagine that somebody charged an electroscope and left. How can you find out wha
ID: 1541508 • Letter: I
Question
Imagine that somebody charged an electroscope and left. How can you find out what charge (positive or negative) is on the electroscope? Devise two methods to determine the sign of the charge of the electroscope. you can bring a. charged (with a known charge) close to different parts of the electroscope - these constitute two different methods. Explain your reasoning to convince others that the methods are applicable. Draw a sketch and indicate the position of the leaf and the charge distribution for all relevant situations.Explanation / Answer
Ans - electroscope works on an very popular principle of electrostatic induction , which indicates that if there are static electrical charges on the surface of any object brought near to the metal plate of electroscope , electric charge move to the metal and down to the foil leaves , which then repel each other .since each leave have same charge ( either positive or negative ) .
Method 1 - as we know that opposite charge attract and similar charge repels so , if we take a positive charge rod near to the electroscope if it leave will rise in opposite direction ,which means it is positively charged
Method 2 - you can also determine charge if the diverges leaves decreases , the body is negatively charged . When the body touched the electroscope , it charge are transferred to the leaves if the diverged leaves decrease means decrease in same kind of charge and increase in opposite charge which means the body is negatively charged