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To find the resistance necessary, one would need to know how much current the bulb draws. If one knows the current the bulb draws, then one would subtract the 14 volts from 120 volts then divide that by the current the bulb draws and one will find the resistance needed. Once this has been done, one would need to multiply the current drawn by the voltage drop to get the wattage rating necessary. Another important detail to note is that the power dissipated by the resistor will be much greater than the power consumed by the bulb itself. Finally if the bulb burns out the voltage across the contacts will be 120V.
I would not recommend using this method to drop the voltage for the bulb.
What else can I help you with?
Can you power a light bulb with limes?
No, you cannot directly power a light bulb with limes. Limes do not generate electricity on their own. You would need a source of electricity, such as a battery or a power outlet, to power a light bulb.
Why won't a three way lamp switch work with a wall controlled outlet?
Not wanting to state the obvious but the wall switch has to be turned on to supply voltage to the outlet. The lamp will need a three way light bulb in the lamp. A three way bulb uses two filaments of different lengths. One element is used for low brightness, the other filament for medium brightness and the high brightness setting uses both filaments in the bulb. If a single filament ordinary light bulb is used in place of a three way light bulb there will be a position on the three way lamp switch where the bulb will not light. Find the position on the lamp where the bulb will light and leave it there. Use the wall switch to turn the lamp off and on through the controlled receptacle.
The light on my gfi outlet is dim and sometimes out i am getting no power to it but the circuit breaker is not tripped i just replaced the gfi and it didn't help any ideas?
If the GFI outlet is tripped (the outlet, not the breaker) then it is telling you there is a ground fault which must be fixed. If the GFI outlet is not tripped, and the breaker is not tripped, but it is still not providing power, then you have a loose connection or a wiring error.
What size resistor in parallel to reduce from 120 volts to 100 volts?
A resistor in parallel with a voltages source will not cause the voltage to drop, theoretically. To get a 20 volt drop you need a resistance in series, and the number of ohms is 20 divided by the current in amps. If the current is unknown or variable, the voltage can't be dropped by using a resistor.
How much volts does a small light bulb need to be powered?
110 volts is what comes out of an average wall socket in America. A 100-watt bulb would be powered by 110 volts. You need to be more specific in your question to get a good answer. Small can't be measured.
What are the basics of how flashlights work?
You need a conductor, power source and a resistor. You need a conductor, power source and a resistor. You need a conductor, power source and a resistor.
What are the minimum requirements in order to light the bulb?
To light a bulb, you typically need a power source (such as a battery or electrical outlet), a conductive material to connect the bulb to the power source (such as wires), and a functioning bulb itself. When these components are properly connected and the power is supplied, the bulb should light up.
What materials you need to turn a light bulb on?
To turn a light bulb on, you typically need electricity, a power source such as a battery or electrical outlet, and a switch or mechanism to complete the circuit. Simply screwing the light bulb into a lamp or fixture connected to a power source and flipping the switch will allow the electricity to flow and illuminate the bulb.
To light up a light bulb we need to connect to a?
To light a light bulb you need to connect to a source of electricity like a battery or an electrical outlet.
Does a paper clip light a light bulb?
No, a paper clip cannot light a light bulb by itself. A paper clip does not produce heat or electricity on its own to generate light. You would need a power source such as a battery or electrical outlet to light a light bulb.
A complete what is needed to make a bulb light up?
To make a light bulb light up, you need a closed electrical circuit. This circuit typically consists of a power source (such as a battery or outlet), wires to carry the electricity, and the light bulb itself. When the circuit is complete and electricity flows through the bulb, it will produce light.
Have a wall outlet that when you turn the light switch on the outlet has no power need help?
Change the wall outlets
How would you make a bulb in a circuit shine with a fainter light?
You can make a bulb shine with a fainter light by reducing the voltage supplied to the circuit. This can be done by adding a resistor in series with the bulb to limit the current flowing through it, or by using a dimmer switch to adjust the voltage. Decreasing the power to the bulb will result in a dimmer light output.
How can I fix a loose power outlet in my home?
To fix a loose power outlet in your home, first turn off the power to the outlet at the circuit breaker. Then, remove the outlet cover and tighten the screws holding the outlet in place. If the outlet is still loose, you may need to replace it with a new one. Be sure to follow safety precautions and consult a professional if needed.
How can I fix a loose electrical outlet?
To fix a loose electrical outlet, first turn off the power to the outlet at the circuit breaker. Then, remove the outlet cover and tighten the screws holding the outlet in place. If the outlet is still loose, you may need to replace the outlet or use shims to secure it. Finally, turn the power back on and test the outlet to ensure it is secure.
How Determine the power dissipated by the resistor?
Power dissipated by the resistor = I^2 * R or V^2 / R, where R = its resistance value, I = the current in the resistor, and V = the voltage drop across the two terminals of the resistor. You need to measure or find the information of either I (using an ammeter) or V (a voltmeter).
How do you run three switches and a hot outlet from one incoming power source?
You need to run a wire from the existing power source to switch to switch to switch to outlet.
