Table of Contents
Whats the definition of circuits?
In electronics, a circuit is a complete circular path that electricity flows through. A simple circuit consists of a current source, conductors and a load. The term circuit can be used in a general sense to refer to any fixed path that electricity, data or a signal can travel through.
What is a Theatre circuit?
An association of theaters in which plays, acts, or films move from theater to theater for presentation.
How are circuits made?
Circuits can be constructed of discrete components connected by individual pieces of wire, but today it is much more common to create interconnections by photolithographic techniques on a laminated substrate (a printed circuit board or PCB) and solder the components to these interconnections to create a finished …
What are circuits used for?
electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constituting the current, such as a battery or a generator; devices that use current, such as lamps, electric motors, or computers; and the connecting wires or transmission lines.
What is the purpose of circuits?
A circuit is the closed loop through which electricity can flow. A closed circuit allows an uninterrupted flow of electricity from the source of power, through the conductor or wire, to the load, and then back again to the ground or source of power.
How does the circuit work?
An electric current in a circuit transfers energy from the battery to the circuit components. No current is ‘used up’ in this process. In most circuits, the moving charged particles are negatively charged electrons that are always present in the wires and other components of the circuit.
What is a circuit for grade 1?
A circuit is a complete path around which electricity can flow. It must include a source of electricity, such as a battery.
What is an initiating device and how does it work?
Initiating devices are connected to the alarm system’s control panel via 2- or 4-way circuits and are under the control panel’s constant surveillance. When an initiating device is activated, the panel identifies the activation and goes into an alarm state, sounding the alarm in the building and sending a call out for an emergency response.
What is a fire alarm initiating device?
Fire alarm initiating devices are devices used to manually or automatically signal a fire alarm system to initiate responses from equipment and people.
How do you identify a device in a circuit?
This identification consists of a binary string of 1s and 0s that indicate the address or location of that device on the circuit. When the FACU polls an initiating device, the initiating device responds with its status (Normal, Alarm, ect.) and address.
What are manually actuated initiating alarm systems?
Sometimes called manual fire boxes, pull stations, or call points, manually actuated initiating devices initiate an alarm signal when there is an input from a person, such as pulling a lever or pushing a button. These can require multiple actions to initiate such as lifting a cover or breaking glass prior to actuating the device.