Learn the Basics of Current Electricity with Myhomeworkhelp.com
Before getting into details, it is important to know the meaning of current. Current is the flow of electrically charged particles, usually electrons or electron-deficient atoms. The most common charge carriers are the electrons and they are negatively charged. Current electricity homework help at myhomeworkhelp.com explains the two different types of electric current. They can be either direct or alternating.
Two types of current
Current electricity assignment help provides a brief description of the two types of currents that are in widespread use today. They are direct current and alternating current.
- Direct current – Here the electrons present flow in one fixed direction. One example of this type of current flow occurs in batteries where electrons flow from the negative side to the positive side
- Alternating current–Here the electrons are pushed back and forth, continuously changing the direction of the flow. Big power plants use generators that produce alternating current. This produces electricity for your home
Direction in which electrons flow
Electric current is a lot similar to water current except that in electric current the water is replaced with charged particles where the charged particles move down a conductor. The atoms that are present in a conducting material have a lot of free electrons that float from one atom to another and also in between them.
The directions in which the electrons flow are described properly with current electricity homework help. The motion in which these electrons move is random. When a voltage is attached to the conductor then all the free electrons move in the same direction, therefore, creating the current.
The nature of charge flow
The average drift speed of an electron is very slow. In a light bulb, the electrons present in the filament light up the bulb immediately. As soon as the switch is flipped all the mobile electrons starts moving and it is this motion that is responsible for the bulb glow. Once this set of electrons leave the filament, they are replaced with new electrons that become responsible for the lighting of the bulb. There is a specific way of the flow of electrons and this flow of energy is explained with current electricity assignment help.
Current measurements
Current electricity homework help is for students who find it a little difficult to understand the different terms of electric current. It is very important for you to know how current is measured. The SI unit of current is ampere (A).
There are many different ways of measuring current but there is one most commonly used method that is to perform an indirect measurement where the voltage is measured across a precision register and then using the law of Ohm to measure the current across the resistor.
In this chapter on current electricity, we have provided current electricity assignment help for all those finding this term a little difficult to understand.
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