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9 volt alkaline batteries are not really meant for heavy discharge loads, and are not normally used to power lamps. The practical limit for any reasonable battery life would be about 0.5 watts. At this power level, you could expect athe battery to last only 2 to 3 hours for incandescent, and maybe up to 5 hours for an LED.
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How Convert 9 volt to 230 volt?
Converting 9 volts to 230 volts would require a pretty hardcore step up transformer (Expensive) and you probably wouldn't have enough current to sustain the load.See discussion page for more information.
How much resistance does a light bulb create if it has a current of 25 mA around it in a 9 V circuit?
how much resistance does a light bulb creat if iyt has a current of 25 mA around it in a 9 V circuit?
What is the output voltage across the secondary of a center-tapped transformer rated at 9-0-9?
If measured on the two outside taps the output will be 18 volt. Measured from the center tap to either of the outside tap will give a reading of 9 volts.
What voltage is required to pass 0.5 A of current through a 4.5-W BULB?
9 volts====================The question is a bit convoluted.The power dissipated by the bulb and the current through itboth depend on the voltage applied across it.In the real world, the way to ask this question would have to be:If a light bulb dissipates 4.5 W of power when 0.5 A of currentpasses through it, what voltage has been applied across it ?(And, for extra credit, what is the bulb's effective resistance ?)
What is difference between mAh and volt?
A milliamp-hour (mAh) is a measure of quality of a battery. It tells you how many hours the batter can provide one milliamp of current before it will die. A volt is the unit of electric potential. AA, AAA, C, and D batteries are all 1.5 Volts. A 9 Volt is 9 Volts. Car batteries are 12 Volts. AA's are typically rated in thousands of mAh. Cs and Ds are more, AAA and 9 Volts are typically less. If you know the power that a device consumes [i.e. Remote, wireless game controller], you can calculate how long your batters will last in the following manner. Time = [mAh / 1000] * [# of batteries * battery voltage] / device power Ex: Device is rated at 1W using 4 AA [1.5 Volt] batteries rated at 1000mAh. Time = [ 1000mAh / 1000 ] * [4 * 1.5 Volts] / 1 W = 6 Hours
Can you use a 13 watt CFL bulb in place of a 60watt incandescent bulb?
no because it would blow up because the socket would draw 13 watt not 9 watt
Can 2x 9 volt battery run a 60 watt globe?
No
Does a 9 volt battery light a light bulb?
Yes, for about .1 second, then it will blow the lamp. A 9v battery will however light three 3.5v lamps.
What is the formula for finding out how many amps is required to achieve the full 100 watt output from a 9 volt bulb?
The formula is volts times amps equals watts, or watts divided by volts equals amps.
How many amp hours does a 13 watt bulb use?
A 13W bulb consumes 13W/110V=0.118 A.If you use it for an hour, it consumes 0.118 Ah, for 2 hours 0.236 Ah, and so on..AnswerLamps don't use ampere hours, as this is simply a unit of measurement for electric charge. You probably mean 'watt hours' which is a measure of energy. A 13-W lamp will use 13 Wh for each hour it is used.
How bright is 400 lumens?
This is a bit less light than a 40W incandescent bulb (much less than a 9-watt CFL bulb, but twice as much as a 5-watt CFL mini-bulb).
What is the battery life of a 9 volt battery on a 3.5 volt of a bulb?
The battery life (assuming it is a primary cell) is determined by the Ampere-hour drawn from it. You cannot connect a 3.5V bulb directly to a 9V battery. The bulb will fuse.
Can you use a 3 volt charger for a 9 volt battery?
No
9 amp go in to watts?
Amp(ere) is the unit for current flow. Volt is the unit for electrical tension. Watt is the unit for power Since Watt is Volt x Ampere , there is no way to answer your question. But with your newfound knowledge, you can now calculate yourselves :-)
What happens when you use a 6 volt instead of a 9 volt?
Car Bomb
Can you use a 9 volt adapter for an 5 volt appliance?
No, the voltage is too high.
Can you use a 9 volt adapter to charge a 19 volt notebook battery?
No.No.
