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LEDs are semiconductors, diodes in particular. The current flowing in an LED is an exponential function of voltage across the LED. The important part about that for you is that a small change in voltage can produce a huge change in current. That is the most important concept of this article. Resistors aren't like that. The current and voltage in a resistor are linearly related. That means that a change in voltage will produce a proportional change in current. Current versus voltage is a straight line for a resistor, but not at all for an LED.
Because of this, you can't say that LEDs have "resistance." Resistance is defined as the constant ratio of voltage to current in a resistive circuit element. Even worse, there's no real way to know exactly the relationship between current and voltage for any given LED across all possible voltages other than direct measurement. The exact relationship varies among different colors, different sizes, and even different batches from the same manufacturer.
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∙ 10y agoYes.
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Can you use a dimmer switch with A19 incandescent bulbs?
Be it a tungsten or LED A19 bulb, both are usable with a dimmer switch. However LED bulbs require special dimmers to work correctly. Normal dimmers, those used for regular tungsten (incandescent) bulbs, use the resistive load of the bulb to allow dimming. Most LED bulbs require other methods to dim the bulb. One stop gap fix to use a regular dimmer is to add a small wattage bulb to the LED bulb circuit. That adds a resistive load to fool the older dimmer. The best option for dimmable LEDs is to ensure you have a dimmer that specifically states it works with dimmable LEDs.
How many watts by 10amp load at 12volts?
For a resistive load it is 120 Watts.
How many watts equal one amp at 440 volts?
Watts = Amps x Volts x Power Factor Power factor varies from 0 to 1 with 1 being a pure resistive load like a light bulb. A motor would have a lesser value. So if your load is resistive just use 1 x 440.
Maximum load 1800W resistive - 600W tungsten?
a resistive load is the same all the time, a tungsten load has an initial surge of current that's higher until the filament heats up and it's resistance increases.
What is an electrical load and how it can be measure?
Typically you are referring to a pure resistive load and not an inductive load. To measure a resistive load you need an Ohm meter. You can buy cheap ones for $10 to $20 on-line or at a store like Radio Shack. Usually they are combined with a volt meter.
Why bulb is resistive load?
the filament is made of tunguston which is having high resistance value,Hence it's resistive load
Is a cf bulb a resistive load?
No, CFL bulbs have a power factor of 0.6-0.7.
Can you use a dimmer switch with A19 incandescent bulbs?
Be it a tungsten or LED A19 bulb, both are usable with a dimmer switch. However LED bulbs require special dimmers to work correctly. Normal dimmers, those used for regular tungsten (incandescent) bulbs, use the resistive load of the bulb to allow dimming. Most LED bulbs require other methods to dim the bulb. One stop gap fix to use a regular dimmer is to add a small wattage bulb to the LED bulb circuit. That adds a resistive load to fool the older dimmer. The best option for dimmable LEDs is to ensure you have a dimmer that specifically states it works with dimmable LEDs.
Is computer is Resistive load?
It is resistive much load
Do air conditioners use resistive load or inductive load?
resistive loadAnswerIf the current is driving a motor, then the load is resistive-inductive.
In a circuit with resistive and inductive load what happens to the power factor as the resistive load increases?
The PF will increase
Is a geyser a inductive load?
No, a geyser is a resistive load.
What are the specifications of resistance?
specification of inductive load,capactive load,resistive load in laboratory
What is the least destructive load to switch?
No load is the least destructive load to a switch.
How many watts by 10amp load at 12volts?
For a resistive load it is 120 Watts.
Fan is inductive load or resistive load?
Inductive since it has a motor with windings.
Fax machine that operates on 120V and it say max wattage is 170W Can you connect two machines in series or one bulb of 170W in series with this machine to 220V outlet?
Connecting a machine in series with a bulb to try to use it on a higher voltage is inadvisable. The machine will have, at least in part, an inductive load, which will not equate to the purely resistive load of a bulb.
