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How much voltage loss with a dimmer switch when used for lights?
Wiki User
∙ 13y ago
There is no loss in voltage. Voltage is constant (dependant on your supply). The dimming is as a result of of a reduction in current (ampage)
Wiki User
∙ 13y ago
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Why dimmer switches feel hot?
If it is dimming the light, yes. A dimmer switch is nothing but a potentiometer, better explained as a variable resistor. It will lower the voltage going to the light bulb, but the excess energy must go someplace, and is released as heat. The lower the brightness, the warmer it will get (until it is turned all the way off). There are newer dimmer switches that work in different manners, but I don't believe that is what you are referring to.
Does a dimmer switch rheostat consume the electricity that the light fixture is not receiving?
A little. First off, most modern dimmer switches aren't rheostats. Those have been supplanted by TRIACs (triode for AC), and later, IGBTs (insulated gate bipolar transistors). For both of these, their mode of action is to change the duty cycle of the AC wave (duty cycle is time on versus cycle time) such that less power per cycle is put through the bulb. This is more efficient than a rheostat, in that, there isnt as much resistive loss across the dimmer. The resistive loss is where the "a little" comes in. For all three types, a small amount of the power put through the dimmer is dissipated as heat - however, this is significantly less than the reduction in output power to the bulb, whatever the type. An ideal dimmer would have 100% efficiency - that is, for a given setting, it would dissipate no heat, and the bulb would be the only thing on the circuit consuming power. However, no component is ideal, and modern dimmers typically consume under 1% of their power throughput (so if it's passing a total of 1W, it'll consume less than 10 milliWatts).
Does leaving the switch on to a switched outlet use electricity if nothing is plugged into the outlet?
Actually curent or voltage that passes through the object . then there will be a loss .if (current or voltage) the electrical energy is converted into light source , mechanical energy( rotation of fan),chemical reaction(electroplating) as heat (iron box ). so when no object(load) is connected to the plug point there wont be any loss if you r switch on the switch too.
Why would a circuit breaker switch spark?
the circuit breaker spark when it comes an over load, loss contact,but the probable cause is loss contact...and also the circuit breaker is going to be damage or destroyed.
What can you power with1 million kw?
The reason electricity is trsnsmitted at very high voltage is to reduce energy loss. As Power = V x I and heat loss = I2 R. Thus if I the current is low the energy lost in the transmission cables will be minimal. The reason electricity is trsnsmitted at very high voltage is to reduce energy loss. As Power = V x I and heat loss = I2 R. Thus if I the current is low the energy lost in the transmission cables will be minimal.
2004 Jeep Liberty Sport What could cause a loss of all the instrument cluster lamps when the fuse tests good The Dome lights work but no cluster lights in the dash radio blower or shift console?
I'm just making a guess here. There is a instrument panel dimmer switch on the multi-function lever on the left side of the steering wheel. This lever incluces turn signal, head lights, parking lights, hi/low beam, instrument panel dimmer, dome lights, and maybe some other stuff. One you figure out how to activate the dome/courtesy lamps, just back that part of the switch off one click and that is the maximum dashlight level setting.
Why core loss depends on voltage?
Why core loss depends on voltage?
Why do you lose power when adding a 12 volt switch?
Need more info.What are you powering?What is your supply in voltage and amperage?What type of loss are you getting.
How the length and thickness of wires could affect the brightness of light bulbs?
Voltage loss. On a long run you will loose some voltage so it is sometimes necessary to increase the wire size to compensate for the voltage loss. This loss of voltage will cause a light to be dim as it is not receiving the correct voltage that is was designed to use.
What is the difference between voltage drop and power loss?
voltage drop is the loss or drop that occured across the element so that voltage gets down and current increases across the element and power loss is like i2r loss and like wastage of power without consuming
Why dimmer switches feel hot?
If it is dimming the light, yes. A dimmer switch is nothing but a potentiometer, better explained as a variable resistor. It will lower the voltage going to the light bulb, but the excess energy must go someplace, and is released as heat. The lower the brightness, the warmer it will get (until it is turned all the way off). There are newer dimmer switches that work in different manners, but I don't believe that is what you are referring to.
I had a new alternator and battery put in my 1999 subaru outback and now the low beams wont work.Could a new alternator have blown out the bulbs on both lights What else could be wrong?
That seems very odd, I wouldn't think the alt or bat change would have anything to do with loss of your low beams, Are you low beams actually burnt out or are they not getting power?? check this. could be a fuse or likely in the Dimmer switch in your steering colum.
Is core loss same as no load loss in transformer?
Yes, that is almost true, apart from a very small copper loss in the primary winding that carries the small magnetising current. The core loss (iron loss) depends on the applied voltage. This loss is measured by the open-circuit test, carried out at the working voltage.
What is the voltage loss over 400 feet?
To answer this question the supply voltage and the amperage of the load must be given.
What is the effect of diode voltage drop as the output voltage?
The effect of diode voltage drop as the output voltage is that the input voltage will not be totally transferred to the output because power loss in the diode . The output voltage will then be given by: vout=(vin)-(the diode voltage drop).
What are the release dates for Switch - 1975 Net Loss 3-1?
Switch - 1975 Net Loss 3-1 was released on: USA: 23 September 1977
Is a device that changes the voltage of an alternating current with little loss of energy?
The device you are referring to is called a transformer. Not only can a transformer increase voltage, it can decrease voltage as well. These are known as a step up transformer for increasing voltages and step down for decreasing voltages.
