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An electric current is a flow of electric charge. This electric charge is carried by moving electrons(charge carriers) in a wire. Electric current is measured as rate of flow of charge. The SI unit for measuring an electric current is the Ampere (A). Electric current is measured using a device called an Ammeter.

## What is electric current answer?

Electric current is defined as **the rate of flow of negative charges of the conductor**. In other words, the continuous flow of electrons in an electric circuit is called an electric current. The conducting material consists a large number of free electrons which move from one atom to the other at random.

## What is an electric circuit short answer Class 7?

Answer: An electric circuit can be defined as **a closed path through which electric current can flow**. Various components such as battery, resistor, wire, key, bulb etc. can be connected in different ways to construct an electric circuit.

## What is current explain?

Current is **the rate at which electrons flow past a point in a complete electrical circuit**. At its most basic, current = flow. … It expresses the quantity of electrons (sometimes called “electrical charge”) flowing past a point in a circuit over a given time.

## What is current and its types?

Current electricity is a constant flow of electrons. There are two kinds of current electricity: **direct current (DC) and alternating current (AC)**. With direct current, electrons move in one direction. Batteries produce direct current. In alternating current, electrons flow in both directions.

## What is Ohm’s law state?

Ohm’s law states that **the current through a conductor is proportional to the voltage across the conductor**. … V=IR where V is the voltage across the conductor and I is the current flowing through it.

## What is electric potential class 10th?

Electric potential (also called the electric field potential or the electrostatic potential) is **the amount of work needed to move a unit positive charge from a reference point to a specific point inside the field without producing any acceleration**.

## What is SI unit current?

Unit of electric current: **ampere (A)**

**The ampere**, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 ×10^{−}^{19} when expressed in the unit C, which is equal to A s, where the second is defined in terms of ∆ν_{Cs}.

## How electric current is produced?

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. The pathway to carry the charges is usually a copper wire.

## 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 the symbol of battery Class 7?

Symbols for Electrical Components (or Circuit Symbols)

(2) The symbol of battery consists **of two cells joined together**. In the symbol for a battery, the positive terminal of one cell is joined to the negative terminal of the other cell.