answersLogoWhite

0

To calculate the resistance of a 5 watt light bulb, you can use the formula P = V^2 / R, where P is power (5 watts) and V is voltage (typically around 120V for a household light bulb). Rearranging the formula to solve for resistance, you get R = V^2 / P. Plugging in the values, R = (120V)^2 / 5W = 2880 ohms. So, a 5 watt light bulb at 120V would have a resistance of 2880 ohms.

User Avatar

AnswerBot

1y ago

What else can I help you with?

Related Questions

What does a light bulb have?

The resistance of a light bulb varies, depending on the type of bulb, the power rating, and the temperature. A typical incandescent 60 watt bulb, for instance has a cold resistance of about 30 ohms, and a hot resistance of about 240 ohms.


How many watts does 5ohms means?

Ohms is the amount of resistances a wire or light bulb has. Like water flowing through a garden hose runs against the residents of the nozzle. Watts is the measurement of energy that a devise uses like a 100 watt light bulb, or a 1200 watt hair dryer


How many lumens are in a 1000 watt incondescent light bulb?

A 1,000 watt is 15,000 lumens. A 100 watt bulb is 1,500 lumens.


How many lumens does a 150-watt light bulb produce?

A 150-watt light bulb typically produces around 2600-2800 lumens.


Could a D cell light a 150 watt light bulb?

A typical voltage of 120 VAC for a 150 watt bulb it draws about 1.25 amps. That means the filament of the bulb has a resistance of 120 / 1.25 = 96 ohms. If you put 96 ohms across a D-cell the current would be 1.5 / 96 = 15.6 milliamps. Since we know that a bulb designed to work at 120 VAC requires 1.25 amps then the 15.6 milliamps wouldn't be enough to light the bulb.


Where do you find a watt?

A watt is a measurement of electricity, usually pertaining to light. Light bulbs luminosity is graded by wattage, such as a 60 watt bulb, 100 watt bulb and so on. You would find a watt in a light bulb, to start.


Is a 100w light bulb brighter than a 60w light bulb?

Yes, a 100-watt light bulb is brighter than a 60-watt light bulb because it produces more light.


When did James watt invent light bulb?

James Watt did not invent the light bulb. Thomas Edison is regarded by most people to have invented it. There were other similar ideas to the light bulb before Edison, however, it was his superior design and set up of entire electrical lighting systems that brought fame and popularity to his bulb. James Watt, is responsible for giving us the unit of measuring power that is his name (watt). The unit is derived by extending on Ohms law, to include that Voltage (e) times Amperage (i) = power.


What is the minimum watt of a light bulb for night reading?

40 watt light bulb. This is obvious. Go do an experiment. -_-


What it is the difference between 100 watts and 75 watt light bulb?

The main difference between a 100-watt and a 75-watt light bulb is the amount of light output they produce. A 100-watt bulb will be brighter and consume more energy compared to a 75-watt bulb. The 100-watt bulb may also generate more heat than the 75-watt bulb.


Was James Watt the first to invent the light bulb?

No, James Watt did not invent the light bulb. The light bulb was invented by Thomas Edison in 1879. James Watt was known for his improvements to the steam engine.


How is the rating of a light bulb determined for instance 100W 60W is that how many watts an hour to run it?

No, the wattage is determined by the resistance of the filament in the light bulb. The formula to determine the wattage is Watts = Voltage (squared)/Resistance in Ohms. To find the resistance of a 120 volt light bulb use the formula, Resistance in Ohms = Voltage (squared)/Watts. So for a 100 watt bulb at 120 volts the resistance is 120 volts x 120 volts = 14400/100 = 144 ohms. For a 60 watt bulb at 120 volts the resistance is 120 volts x 120 volts = 14400/60 = 240 ohms. As you can see this holds true to Ohm's law, current is inversely proportional to the resistance of the circuit. The higher the resistance of a load, the harder it is for the current to flow. In this case less current results in less light being emitted from the filament in the light bulb.