Short answer questions
1. Name one source used for the large scale production of electricity.
2. Name one material used to make the negative terminal of a dry cell. Since
37 Name the paste and powdered chemical compounds used in a dry cell.
4. What is the direction of flow of electric current in an electric circuit?
3) What is an electric switch?
ong answer questions
With the help of a simple diagram, explain the working of an electric bull
Explain the working of a simple dry cell.
List the three basic conditions required for an electric current to flow.
Answers
Answer:
1) The first power plants used water power or coal; and today a variety of energy sources are used, such as coal, nuclear, natural gas, hydroelectric, wind generators, and oil, as well as solar energy, tidal power, and geothermal sources.
2) Zinc container
3)Ammonium chloride paste and powdered manganese dioxide are used in a dry cell.
4)The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.
5) In electrical engineering, a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another
A mechanical bull, also known as a bucking machine, is a device that replicates the sensation of riding a bucking animal, such as a rodeo bull or horse invented and popularized by Sherwood Cryer. It is usually powered by a variable-speed electric motor.
To produce an electric current, three things are needed: a supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges.
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