because the circuit has to many outlets on it
Use a voltmeter. The normal choices in the US are 120 v and 240 v. If there is no voltmeter, use an ordinary cheap 60 watt lamp. If the lamp lights normally, the outlet has the voltage marked on the bulb. If it's too dim, the outlet has a lower voltage. If it flashes and dies, it's a higher voltage (I said use a cheap lamp).
Because the higher voltage would be dangerous domestically.
No, it is not true. An electrical current (which is a flow of electrons) can only flow from a higher pressure state (higher voltage) to a lower pressure state (lower voltage).
One is AC and the other is DC. AC- alternating current is used in electrical outlets DC- direct current is used in batteries. An electrical outlet in your house would have 120 volts (the ones you use most, your tv, lights, radio are plugged into) or 240 volts (the ones your stove and dryer plug into). A battery voltage varies widely: AA & AAA batteries have 1.5 volts, a 9 volt battery has 9 volts, your car battery has 12 volts.
Amps Ohm's law states the current is directly proportional to the applied emf (voltage) and inversely proportional to the resistance of the circuit.
Pl. answer me.. what happened when the DC magnet will be supplied low voltage then the rated. Nirmalesh
It is not necessarily safer, it has a lower current capacity than a wall outlet, but a much higher voltage. Under the right circumstances both have the potential to kill you. As I recall there are about 1,000 electrocution deaths in the USA each year and would assume more of these are from household accidents rather than from a taser. Taser is a registered trademark that stands for Thomas A. Swift's Electric Rifle.
Electronsflow from areas of lower to higher voltage, while Current flow from areas higher to lower voltage.
Yes. If you hook up your phone charger, it is using a little bit over 50% power without a phone attached. No. The voltage potential of 120 volts is at the receptacle outlet slots but to make the current flow, a resistive load is needed. In the case above the phone charger is the load. Un-plug the load and no current flow.
Tide = Flow of kinetic energy from higher ground to lower ground Wind = Flow of kinetic energy from higher pressure to lower pressure Electricity = Flow of electrical energy (transfer of kinetic energy) from higher voltage to ground or low voltage.
Difference of potential (voltage) causes current to flow as long as there is a complete path (circuit) for it to flow along. Voltage can be thought of as electrical pressure along the same lines as water pressure. If there is a competed path the electrical 'pressure'will push the electrons from the higher potention (pressure) to the lower potential (pressure).
The function of any transformer is to change one AC voltage value to another AC voltage value. A step down transformer will transform a higher AC voltage to a lower AC voltage. A step up transformer will transform a lower AC voltage to a higher AC voltage. The transmission of electrical power uses both of these types of transformers. From the generation station the voltage is stepped up to a very high transmission voltage and at the end of the transmission line it is stepped down to a voltage that consumers can utilize.