Advertisements
Advertisements
Question
How will you use a gold leaf electroscope to find out whether the charge on a charged body is positive or negative?
Advertisements
Solution
(a) Charge negatively the gold-leaf electroscope by conduction i.e. To detect the kind of charge by a positively charged gold leaf electroscope touching the disc of GL.E. with negatively charged ebonite rod. The leaves diverge (because of repulsion) Note the divergence as shown in figure (a).
(b) Bringa charged body to be tested in contact with the disc. If divergence in leaves increases, it has a similar charge i.e. negative as shown in figure (b)
(c) If divergence decrease, the body has opposite charge i.e. positive charge as shown in figure (c).
APPEARS IN
RELATED QUESTIONS
Silver is an insulator of electricity.
The number of electrons and protons in an atom are the same.
Mercury is a ............ of electricity while pure water is ............ of electricity.
Match the following
| Column A | Column B |
| A. Two like charges | 1 negative charge |
| B. Two unlike charges |
2 repel |
| C. Silver is a | 3 insulator |
| D. Silk is an | 4 attract |
| E. Ebonite rod rubbed with fur acquires | 5 conductor |
When a negatively charged body is brought closer to another negatively charged body, then they will show
Describe an experiment to demonstrate that there are two r kinds of charges.
An ebonite rod rubbed with fur is suspended near another ebonite rod rubbed with fur. State your observation and give a reason to support your answer.
Draw a labelled diagram of a gold leaf electroscope and describe its construction.
A positively charged glass rod is touched with the disc of an uncharged gold leaf electroscope. What will be your observation?
How will you use a gold leaf electroscope to find out whether a body is charged or uncharged?
