Electricity and Magnetism
One source of constant electric current is a?
Asked in Electronics Engineering
Is a transformer one source of constant electric current?
What is one source of constant electric current?
Cells and batteries. A more detailed answer In general, most power supply sources - including cells and batteries - cannot supply either a truly constant current or voltage. Because most load devices are designed to require a nearly constant voltage - and not a specific constant current. - most power supplies - including cells and batteries - are designed to supply a given output voltage whatever the current that is being drawn, provided of course that the current stays within a pre-determined designed range of output current values. One definition of "constant current source" is that it has zero output resistance, which in practice cannot exist. However, a transistor can act as a constant current source if biased and used in that manner. This can also be done using one of the several standard "voltage regulator" components - which are available from electronics parts suppliers - because they can be hooked-up to act as constant current sources to operate over a small range.
Asked in Physics, Electricity and Magnetism, Circuits
What current is carried in an electric circuit?
By definition, an electric circuit allows electric current to flow from a source of current and back around to that source in a complete circuit, rather like water from a pump outlet flowing round a pipe back to the pump inlet in a circulating system. The electric current may flow in only one direction at all times (direct current, or pumping in only one direction) or may change direction periodically (alternating current, or reversing the pump periodically).
Asked in Electricity and Magnetism
How does static electric differ from current electric?
Static electricity is a charge that is stored in a medium until it finds a way to discharge itself to a ground source .. scuffing your feet on a rug , socks help , will build a charge in you until you touch something ,, brother, door knob , lightening is a static charge, a capacitor uses a static charge Electric current is a constant flow of electricity from one place, a source thru a circuit and back to the source .. a battery is made to cause this flow thru chemical action .. the power in your house has various circuits that carry the electrical current flow thru the devices and appliances in your home
Asked in Home Electricity
What current flows in one direction while anther remains constant?
Asked in Science
Why is DC field current required for an electric generator?
Can an electric current generate an electromagnetic wave?
Not a constant electric current but a changing one will generate electromagnetic waves. First: If you have a lone electron, and it is accelerated in any way, it will send off an electromagnetic wave. This is because a changing electric field generates a magnetic field. It is also true that changing magnetic field will generate an electric field. This is the reason that if you have an electric current, which is generating a magnetic field, and you change the current you generate an electromagnetic wave. To generate a continuous sinusoidal electromagnetic wave you continuously change the current sinusoidally.
Name one household items that use a battery as a source of electric current?
Is the current the same at every place in a series circuit?
Asked in Electricity and Magnetism
What are the components of a circuit?
What are Sources of direct current and alternating current?
What are the advantages and disadvantages of electrical current?
Asked in Home Electricity, Physics, Chemical Energy
Electric Current that flows in one direction is called?
What is the part of a circuit that connects or disconnects the circuit?
Switches, fuses and circuit breakers are examples of some of the electrical parts which can connect or disconnect a circuit to a source of current. A diode does it for alternating current, but only for one half of each cycle. "Connecting" allows an electric current to flow through the circuit. "Disconnecting" stops an electric current from flowing through the circuit.