Short answer questions
D. Answer in brief.
1. What kind of cell is used in a wrist watch?
2. Name the two terminals of a dry cell.
3. What is an electric circuit?
4. What is the direction of electric current in an
electric circuit?
5. What is a circuit diagram?
6. Which device is normally used to open or
close an electric circuit?
7. Draw the circuit diagram of a simple circuit
consisting of a battery of two cells, a bulb
and a switch.
Answers
Answer:
7) attachment1
5)attachment 2
Explanation:
1)Button cells are used to power small portable electronics devices such as wrist watches, and pocket calculators. Wider variants are usually called coin cells. Devices using button cells are usually designed around a cell giving a long service life, typically well over a year in continuous use in a wristwatch.
2)Two terminals are present in a dry cell. They are positive terminal and negative terminal.
6)A device designed to open or close a circuit under controlled conditions is called a switch. The terms “open” and “closed” refer to switches as well as entire circuits. An open switch is one without continuity: current cannot flow through it.
5)A circuit diagram (also known as an electrical diagram, elementary diagram, or electronic schematic) is a simplified conventional graphical representation of an electrical circuit. . The diagram does not show the physical arrangement of components.
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.
3) Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constituting the current, such as a battery or a generator; devices that use current, such as lamps, electric motors, or computers; and the connecting wires or transmission lines.
Mark as brainliest .
Answer:
ashish
Explanation: