Answer
A timer is used to time things. For example if you think of how many truck there are rolling down our highways it would be amazing, but they are on a timer of sorts. They have to deliever on time or they get penilized for being late. Timers are used on inside and outside lights, there are tons of uses for timers.
You can set the timer so it turns on at a specific time, like just before you get home from work. The sleep function is if you want it on for awhile at night when you go to bed - you can set it for how long you want it to run.
This depends on the circuit. A resistor may be connected in series with a capacitor and will control the rate at which the capacitor charges or discharges (known as an RC timing circuit); at a certain voltage (0.6 Volts) this may turn on part of another circuit through a transistor.
A timer can be of two types. An off-delay timer is used when the circuit needs to be energized for a specific amount of time after the off-delay's timers coil becomes de-energized. An example of this is when a cutoff saw becomes de-energized but the conveyor, to move the wood along, needs to be operational until the wood clears the saw head. The other type of timer is an on-delay timer. An on-delay timer is used when you don't want all of the equipment to come an at once. After a power failure, in motor circuit starters you don't want to create a high inrush to the MCC (Motor Control Center) when all of the motors try and start at once. This high inrush could trip the MCC breaker an then none of the motors would start. Each motor module has its own on-delay timer so that the motor starts are staggered. The first motor will start, when the on-delay timer of the second motor times out, it will start, and so on until all of the motors are back on line and running again.
timer is a related for clock . it is using for power cirtes
for made of electric circuit safety device,
The function of a light bulb in an electric circuit is that it turns electrical energy into light.
a battery in an electric circuit is used to generate the power supply.
an oscillating RC circuit
http://theflashblog.com/?p=231 Basically create the timer, give it an event listener, and a function. Change your object using the function and start the timer.
A timer is often used in a heated rear window function to stop the circuit from over heating and blowing a fuse if forgotton about.
for made of electric circuit safety device,
the function of the control device is that you can know if the circuit is on or off
the function of a resister is to lower the voltage.
A voltmeter is a device to measure the voltage in a electric circuit, and must have be connected in parallel to it.
The function of a capacitor or an electric circuit is to store energy. It keeps this energy stored until it is need for release at a later time.
it's function is to supply energy(electric)
I have never heard of an electrical term "build" in an electrical circuit.
The function of a light bulb in an electric circuit is that it turns electrical energy into light.
To provide electricity for the bulb to light up.
The function of a light bulb in an electric circuit is that it turns electrical energy into light.
it lets the energy flow from the power scource to load