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In AC supply, the RMS current is the effective current for power used in a resistive circuit. This is defined as the square root of the mean value of the square of the current, taken over a whole cycle. The RMS current dissipates power at the same rate as a DC current of the same value. A light bulb of course gives out light dependent on the current through the filament. So if the RMS current and the DC current are the same value, the light produced will be equal.
With AC supply, the RMS value of current and volts is 1/(square root of 2) x the peak value, so peak value = 1.414 x RMS value. If you supplied DC at volts and current equal to the peak AC value, the power given to the light bulb would clearly be greater.
Therefore to answer your question you have to specify what relative values your AC and DC supplies have.
What else can I help you with?
Where does the electricity go in a light bulb?
Electricity flows through the filament of a light bulb, heating it up and causing it to emit light. The electricity powers the light bulb, allowing it to produce illumination.
What useful energy is in a light bulb?
The useful energy in a light bulb is the light that it emits. When electricity flows through the filament of a light bulb, it produces light energy that we can see and use for illumination.
What forms of energy are given off by a light bulb?
A light bulb gives off mainly light energy as well as heat energy. When electricity flows through the filament in the bulb, it gets hot and emits light.
What is the useful energy of a light bulb?
The useful energy of a light bulb is the light it emits, which is used for illumination. This is the intended function of the light bulb, as it allows us to see and perform tasks in dark environments.
Does a flashlight contain an electromagnet?
No, a flashlight does not contain an electromagnet. Flashlights typically use batteries to power a light bulb or LED for illumination.
What will happen when DC supply is given to a bulb?
When a 230 V dc supply is given to a bulb it will glow, because it has just a coil inside.
What would happen to the bulb if you we give supply from the both sides at the same time?
as both supply is given from same phase then the bulb will glow as normal
What are uses of a light bulb?
To provide illumination
What are use of light bulb?
To provide illumination
What is the recommended ceiling fan light bulb size for optimal performance and illumination?
The recommended ceiling fan light bulb size for optimal performance and illumination is typically a standard A19 bulb with a maximum wattage of 60 watts.
How do municipalities use LED light bulb?
For illumination and indication.
When the bulb is the resistance what this tells about the resistance?
An incandescent bulb has a filament that has a resistance. The value of the resistance determines the current that will flow for a given supply voltage. The heat generated by the current flowing through the filament gives off light. As the resistance of the filament decreases the current increases and you get more light.
What does an energy saving light bulb do?
It uses less energy to produce the same amount of illumination as a standard light bulb
What is a source of illumination?
Illumination=light, so a source of light Eg. lightbulb, moon, sun etc.
Why does the speedo illumination not work on my W reg vauxhall zafira?
because the bulb has blown
How many amps are needed to run a light bulb?
If you divide the watts of the bulb by the supply voltage, that is the current. For example a 60 w bulb on a 240 v supply gives a current of 60/240 which is ¼ amp.
What are the purposes of the light bulb?
Illumination. There are minority uses as well, for example heating a hamster cage.
