Science Entry Electric Circuits

An electric Circuit is a complete path that carries electric current from one place to another basic circuit needs:1) A source: battery, plug, lemon, etc.2) A resistor: light bulb, motor, fan, etc.3) Connecting wires, switches, etcA circuit connects in a path these things. The positive and negative energy in a battery never need to connect (until they reach the resistor) or else they connect a short circuit. The flow of charge in a circuit is measured in volts (a battery has 1.5 volts, a plug has 220 volts) and the amount of current is measured in amps (more then 0.2 amps are deadly). Ohm's law states the resistance of a circuit is equals to the voltage (volts) divided by the charge (amps). Electricity is connected to magnetism if you connect a wire with loops (called a solenoid) to a functioning circuit you will produce a magnetic field. This magnetic field needs electricity to function, but it has the advantage that it is controlled by your circuit, so you can decide the power on the magnetic field (that depends on the voltage/materials/resistance of the your circuit) and you can turn it on and off.