CHECK Point 4
1. Fill in the blanks.
(a)an-------can be used to detect a charge.
(b)When a gold leaf electroscope is connected to a changed object, its leaves---------.
(c)------++--+is a huge spark taking place among the clouds when their moisture content is
2. Answer these questions.
(a) Which electroscope is commonly used in a school laboratory?
(b) Whar is atmospheric electricity?
Answers
Question :-
1. Fill in the blanks.
(a) An _____ can be used to detect a charge.
(b) When a gold leaf electroscope is connected to a changed object, its leaves ______.
(c) ______ is a huge spark taking place among the clouds when their moisture content is increased.
2. Answer these questions.
(a) Which electroscope is commonly used in a school laboratory?
(b) Whar is atmospheric electricity?
____________________
Answers :-
1. Fill in the blanks.
(a) An electroscope can be used to detect a charge.
(b) When a gold leaf electroscope is connected to a changed object, its leaves diverges/opens up.
(c) Lightning is a huge spark taking place among the clouds when their moisture content is increased.
2. Answer these questions.
(a) Which electroscope is commonly used in a school laboratory?
Answer (a) :- The Gold Leaf Electroscope is commonly used in a school laboratory. The gold leaf electroscope has been used by physicists for hundreds of years. It indicates the presence and magnitude of a charge through the application of charge to a copper top plate connected through a stem to two pieces of gold leaf. And the results are clearly visible, hence it is commonly used in a school laboratory.
(b) Whar is atmospheric electricity?
Answer (b) :- Atmospheric air is rarely regarded as an electrical conductor, but it is able to pas a small electric current because of the ions it contains. Atmospheric electricity, electrical phenomena that occur in the lower atmosphere, usually the troposphere.
Example:- The production, transport, and loss of free electrical charges; the change in electrical potential from point to point in the atmosphere; and the atmosphere's electrical conductivity.