# What do you mean by an electric circuit class 7?

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An electric circuit is a path in which electrons (or current) flow. If the circuit is incomplete or broken, the current doesn’t flow. … A switch or key in the circuit is used to make or break the circuit to start or stop current flow. An electric circuit is represented by a Circuit Diagram.

## What do you mean by an electric circuit?

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.

## What does an electric circuit mean Ncert?

Ans: A continuous and closed path of an electric current is called an electric circuit. An electric circuit consists of electric devices, source of electricity and wires that are connected with the help of a switch.

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## What is a circuit diagram Class 7?

Circuit Diagrams

A diagram which tells us how the various components in a circuit have been connected by using the electrical symbols of the components, is called a circuit diagram. So, we usually represent an electric circuit by its circuit diagram.

## What do you mean by an electric circuit class 6?

An electric circuit is a path along which electricity can flow. A simple electric circuit consist of a cell, torch bulb and two pieces of wire (called connecting wires). … (6) The wires and bulb form a continuous path between the two terminals of the cell for electricity to flow through.

## What is an example of an electric circuit?

An electric circuit is a connection of components that can conduct electric current. … Every circuit is designed to deliver power to one or more loads. For example, in a boombox the power goes to the speakers. Similarly, the power in a lamp goes to the light bulb.

## What is electric circuit with diagram?

A circuit diagram (also known as an electrical diagram, elementary diagram, or electronic schematic) is a simplified conventional graphical representation of an electrical circuit. … Arrangement of the components interconnections on the diagram does not correspond to their physical locations in the finished device.

## What is an electric circuit class 8?

The electric circuits are closed-loop or path which forms a network of electrical components, where electrons are able to flow. This path is made using electrical wires and is powered by a source, like a battery. Wire. …

## What is the difference between open and closed circuit?

An open circuit is defined to be basically a circuit where the energy is not flowing through it. A closed-circuit is defined to be the one where the energy is allowed to flow through it by turning it on. A circuit is made closed if the electricity is flowing from an energy source to the desired endpoint of the circuit.

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## What is the role of fuse wire in our daily life?

A fuse(s) is needed in any electrical system (AC or DC). These protection devices react to the amount of heat being produced by electricity passing through wires and/or components. They are used so as to protect wires and components from the extreme heat produced should there be an electrical overload or short circuit.

## What are the main parts of a circuit?

Every circuit is comprised of three major components:

• a conductive “path,” such as wire, or printed etches on a circuit board;
• a “source” of electrical power, such as a battery or household wall outlet, and,
• a “load” that needs electrical power to operate, such as a lamp.

## What are open and closed circuit for Class 7?

If the circuit is incomplete or broken, the current doesn’t flow. This type of circuit is called an Open Circuit. If the circuit is complete, the current flows. This type of circuit is called a Closed Circuit.

## Why do we need circuit diagram?

Answer: A drawing meant to depict what the physical arrangement of the wires and the components they connect is called “artwork” or “layout” or the “physical design.” Circuit diagrams are used for the design (circuit design), construction (such as PCB layout), and maintenance of electrical and electronic equipment.

## What is the purpose of using an electric switch Class 6?

Solution: The purpose of an electric switch is to complete or break the circuit. Electrical gadgets that have switches built into them are fan, refrigerator, television, microwave oven, electric cookers. 6.

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## What is the function of switch for Class 6?

Answer: The function of switch in an electric circuit is to either make or break the electric circuit. A switch is used to turn current to an electrical appliance either on or off.

## What is the purpose of using an electric bulb?

A light-bulb produces light from electricity. In addition to lighting a dark space, they can be used to show an electronic device is on, to direct traffic, for heat, and for many other purposes. Billions are in use, some even in outer space. Early people used candles and oil lamps for light.