What device is used to increase or decrease voltage?
A transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage.
How is voltage increased?
The way it’s increased is by creating an increased electric field, which is in turn generated by charged particles. If you were to increase the voltage, increase the electric field, which means increasing the charged particles.
What term describes electricity in which electrons flow?
CURRENT – Movement of electricity along a conductor. Current is measured in amperes. CURRENT FLOW – The flow or movement of electrons from atom to atom in a conductor.
What can be used to increase voltage?
Although it is usual in electronic circuits to use a voltage transformer to increase a voltage, sometimes a suitable step-up transformer or a specially insulated transformer required for high voltage applications may not always be available.
What does current mean in electricity?
Electric current is the movement of electrons through a wire. Electric current is measured in amperes (amps) and refers to the number of charges that move through the wire per second. Voltage is sometimes called electric potential and is measured in volts.
Which is the correct abbreviation for alternating current?
This resource of electronics and electrical terms should be bookmarked as a handy reference, to be used by students, educators, hobbyists and engineers. If you have a term you think we should add, let us know. AC – Abbreviation for alternating current. See Alternating Current
Which is the correct definition of an AC generator?
AC/DC – Equipment that will operate from an AC or DC power source. AC generator – Device that transforms mechanical energy into AC electrical power. AC load line – A graph representing all possible combinations of AC output voltage and current for an amplifier. AC power supply – Power supply that delivers AC voltage.
Which is a term for electromotive force in physics?
The Faraday experiments involved moving a ______ through a loop. Another term for electromotive force is _____. A device used to increase or decrease the emf in the second of two unconnected coils is a _____. Calculate the electrical energy expended in a device across which the circuit voltage drops by 40.0 volts in moving a charge of 2 coulombs.
Which is a device that controls the flow of electrons?
A device that uses a moving electron stream to trace a pattern on a screen. The element in a vacuum tube that controls the flow of electrons. A device for generating an electromotive force (emf).