0
What else can I help you with?
How much work does a 75 watt bulb do?
In the sense of 'work' as force moving through a distance, a light bulb does none of that. But in the sense that mechanical work is equivalent to energy in other realms, the 75-watt light bulb consumes 75 joules of electrical energy every second, and radiates 75 joules per second of energy in the form of light and heat.
If 100 J goes into a light bulb how much energy comes out of the light bulb in total?
The amount of energy that comes out of a light bulb is typically less than the energy that goes in, due to energy losses in the form of heat and light. The efficiency of a light bulb is determined by its design and technology. The amount of useful energy output can vary depending on the type of light bulb used.
How much energy used in a light bulb every second?
That depends a lot on the type of lightbulb. Check the number of watts on the lightbulb - watts means joules / second. An old-fashioned incandescent lightbulb might use in the range of 40-100 watts (joules/second); 100 watts for the brighter ones. On the other hand, a fluorescent lightbulb uses around 40 watts for the brighter ones, and a LED lightbulb uses even less.
How much energy each of the bulb will get in the two circuits?
The total energy delivered to each bulb in a circuit depends on the voltage of the circuit and the resistance of the bulb. In a series circuit, the total voltage is divided among all bulbs, so each bulb receives less energy compared to a parallel circuit where each bulb gets the full voltage of the circuit.
How much of the electrical energy used to light an incandescent bulb is converted into light energy?
Only about 10% of the electrical energy used to light an incandescent bulb is converted into light energy. The rest is mostly given off as heat.
When 60 W means that W joules of energy are transferred into the bulb each second. In use how much energy is given out by the bulb each second?
The light bulb will use electrical energy at the rate of 60 W (60 J/s), and it will emit that energy, also at the rate of 60 W.Note that in any real light bulb, only part of the energy is emitted as visible light. The remainder is mainly heat.
What is the power rating of lights?
The power rating of the bulb indicates how much power it uses. The power in watts indicates how much energy in Joules the bulb uses in one second. A bulb should have its voltage and power printed on it.
What is the Electrical power for a lightbulb?
The power rating for a light bulb (like "40 W") tells how much electrical power the light bulb uses. All of the power used by the bulb is either converted into light or heat. In an incandescent bulb, most of the energy becomes heat. In a fluorescent bulb, more of it becomes light.
How much electrical energy does a 75 W light bulb use if it is on 4 hours?
75W means bulb which give 75W power when connected to domestic light. Power is nothing but energy per second. Thus energy consumed by bulb can be calculated as follows. E = 75*60*60*4J = 1080kJ
How much work does a 75 watt bulb do?
In the sense of 'work' as force moving through a distance, a light bulb does none of that. But in the sense that mechanical work is equivalent to energy in other realms, the 75-watt light bulb consumes 75 joules of electrical energy every second, and radiates 75 joules per second of energy in the form of light and heat.
How much energy does a 5 watt light bulb produce?
None. But it does convert 5 watts of electrical power (energy per unit time) into 5 watts of [light + thermal] power.
If 100 J goes into a light bulb how much energy comes out of the light bulb in total?
The amount of energy that comes out of a light bulb is typically less than the energy that goes in, due to energy losses in the form of heat and light. The efficiency of a light bulb is determined by its design and technology. The amount of useful energy output can vary depending on the type of light bulb used.
If a lamp bulb is rated at 100 watt why is a time factor not in the rating?
The wattage rating of a lamp bulb is a measure of the power it consumes, not the duration it operates for. The rating tells you how much power the bulb will use when it is in operation, but it does not provide information about how long the bulb will last before needing to be replaced.
Different color light bulb affect how much energy it has?
No, Colored light bulbs holds the same amount of energy a regular light bulb holds.
How much energy does a sixty watt light bulb use to yield light?
It takes 60 watt-hours. Same as lighting a 1-watt bulb for 60 hours; or 60 bulbs of 1 watt each for 1 hour. You get the idea.Notice the units: watt-hours, not watts. Watt is a unit of power, watt-hour is a unit of energy. 1 watt-hour = 0.001 kWh (kilowatt-hour) = 3600 joules = 860 calories = 3.4 BTU.
How much energy used in a light bulb every second?
That depends a lot on the type of lightbulb. Check the number of watts on the lightbulb - watts means joules / second. An old-fashioned incandescent lightbulb might use in the range of 40-100 watts (joules/second); 100 watts for the brighter ones. On the other hand, a fluorescent lightbulb uses around 40 watts for the brighter ones, and a LED lightbulb uses even less.
How much energy does a 5 watt light bulb use off?
A lot
