Electromagnetic Motor?

Electric motors are very useful, clean and versatile and are composed of three major parts. Every eletric motor must have a current source, a magnet and a loop of coil. The motor transforms the potential energy of the power source into mechanical energy for rotating the coil. Electric current induces a magnetic field. The battery and the coil form a closed circuit when the leads are in contact with the holder slots, so there is electricity flowing through the coil creating a magnetic field. The magnetic field produced by the current in the coil interacts with the filed of permanent megnet, causing the coil to turn.

Source: OSU Experiments.

Solar Powered Cars?

Solar Powered Cars are cars which run on energy from the sun.. It actual works, but obviously you can not use this car when it's raining outside. People make this as a toy style, but there is a competition recently about Solar Cars. People make solar cars as big as regular cars, and judges check the design, how long it could run and if it actual works.

"There is a very bright future for solar energy to power our transportation needs and we're just scratching the surface of the possibilities." - New Green QuestionVille.

It would be fun if you have a car like that!

Electric Cars?

Electric Cars have weird looking, like those pictures. Not like cars what your parents has, or you wish to get when you grow up, Electric cars are special. Electric cares are commonly powered by on-board battery packs. Electric cars have the potential of significantly reducing city pollution.
A ground vehicle propelled by a motor powered by electrical energy from rechageable batteries or other source onboard the vehicle, or from an external source in, on, or above the roadway; examples include the electrically powered golf cart, automobile, and trolley bus.

Would you have one of these electric cars as your Future Car?

What is a Parallel Circuit?

A circuit that has more than one path to travel is called a Parallel Circuit.

In a parallel circuit the potential difference which is a voltage, across each component is the same. But, however, the current through each branch of the parallel circuit may be different. For example, the lights and outlets in a house are connected in parallel so that each load will have the same voltage (120volts) but each load may draw a different current.

A parallel circuit is a circuit in which there are at least two independent paths in the circuit to get back to the source. In a parallel circuit, the current will flow through the closed paths and not through the open paths.

What is a Series Circuit?

A circuit that has only one path to travel is called a Series Circuit.

A series circuit is a circuit where there is only one path from the source through all of the loads and back to the source. This means that all of the current in the circuit must flow through all of the loads. One example of a series circuit would be a string of Christmas lights. There is only one path for the current to flow.

What is a Closed Circuit?

An electrical circuit through which current can flow in an uninterrupted path is called the Closed Circuit. Live electrical circuit through which current is flowing also is called Closed Circuit. For example, transmission of audio or Video signals within a small area such as a our house, or parent's office. Closed circuit television is used also for monitoring and security purposes.

What is an Open Circuit?

Any circuit which is not complete is called an Open Circuit. A complete circuit which is not performing any actual work can still be a closed circuit. For example, a circuit connected to a dead battery may not perform any work, but it is still a closed circuit.

An electric circuit that has been broken, so that there is no complete path for current flow.

A condition in an electric circuit in which there is no path for current between two points; examples are broken wire and a switch in the open, or off position.

Open circuit voltage is the potential difference between two points in a circuit when a branch (current path) between the points is open-circuited. Open circuit voltage is measured by a voltmeter which has a very high resistance.

What is a Circuit?

A closed path through which an electrical current can flow is called a Circuit.

Electrons with a negative charge, can not just jump through the air to a positively charged atom. They have to wait until there is a link or bridge between the negative area and the positive area. This also means, a Circuit.

When a bridge is created, the electrons begin moving quickly. Depending on the resistance of the material making up the bridge, they try to get across as fast as they can. But, too many electrons could go across at one time and destroy the circuit, in the process.

When we limit the number of electrons that can cross over our circuit, we call it, Resistance. Before electrons can move far, they can collide with one of the atoms along the way. This slows them down or even reverses their direction. Therefore, they lose energy to the atoms. This energy to the atoms. This energy appears as heat, and the scattering is a resistance to the current.