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Difference between a lamp and a bulb?
Lamp have required high rating to glow & have a specific luminus area.exa-table lamp,florucent lamp,sodium vapur lamp,BUT but bulb have no required rating exa- halogin bulb
What does the wattage of a bulb indicate?
The power rating of light bulbs tells how much electric energy in watts the bulb consumes when burning. As an aside, a rule of thumb for estimating how much you are paying to burn a light bulb for a year, the number of watts equals the number of dollars. So if you burn a 40 watt bulb for a year it costs about $40. If only at night cut that in half and say it costs $20. If you burn 5 of the bulbs all year it's $200
Is it true that when a round bulb and a long are connected in a parallel circuit the long bulb is brighter than the round bulb?
Bulbs that are connected in parallel would be the same brightness as a bulb on its own. If the bulbs were in series with other bulbs, then they would be dimmer. The voltage would drop across a series.
How much energy does a projector use?
The power rating is printed on the lamp holder, expressed in watts. As power describes the rate of energy consumption, you need to convert the number of watts into kilowatts (divide by 1000) and multiply this figure by the time for which the lamp is in use (expressed in hours) -this will tell you the number of kilowatt hours of energy used.
What does 40W mean on a light bulb?
It means that the power consumption of the bulb is 40 watts.
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.
How much power does a CFL bulb use in comparison to a standard bulb?
Look at the base. The power rating will be printed there.
How long can a battery power a 44 watt light bulb?
To answer this question the amp hour rating of the battery is needed along with the voltage of the battery or bulb.
What is the power rating of a lighting bulb when 0.8 a flow through it when connected to a 120-v outlet?
96watts
What is the power rating for a light bulb in one hour?
Light bulbs have various ratings. They are rated in Watts.
What do you need to know to calculate how much energy light bulb uses?
You should be able to read the power off the bulb or its packaging.
How many amps in a low voltage light bulb?
Look on the light bulb for the voltage and the power in watts. Then divide the watts by the voltage and that gives the amps. Some CFL bulbs also state the current as well as the voltage and power, which is because they can have a poor power factor.
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.
Can you use an inverter on a 1500 watt sodium bulb?
You can as long as the rating of the inverter supports the 1500 watt power requirement at the operational voltage of the bulb. There may be a surge at start-up of the bulb so that has to be taken into account.
What parameters you consider when you calculate the current consumption of a 40 watt fluorescent bulb?
voltage, current and power factor
What reason for bulb blowing in an electrical circuit?
Too much current for the rating of the bulb.
How can calculate ka rating?
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