Asked in Home ElectricityPhysicsMalaysiaVisible Light SpectrumMicroscopes
Visible Light Spectrum
How do you use Japanese light bulb 100V in Malaysia which is 240V?
Can you replace a 100 volt light bulb with a 240 volt light bulb?
Answer for USA, Canada and countries running a 60 Hz supply service. If we assume that the resistance of the light is R then the amps drawn by the 100 Volt light is 100 divided by R; and the amps for the 240 volt light is 240 divided by R. Therefore, at 240 volts the light will draw 2.4 time the current it would draw at 100 volts and will likely burn out the bulb immediately. Correction: The answer above assumes the R of both lamps is the same. Most likely they are not. A 100W lamp designed for and supplied with 100V draws 1A with an R of 100ohms. A 100W lamp designed for and supplied with 240V draws 0.42A with an R of 571.43ohms. The Rs do not change. I assume the circuit has not changed so it is a 100V circuit. If you place the 100V across the 571.43ohms you get a current of 0.175A. The lamp designed for 240V, when placed on a 100V circuit, would not glow and would not burn out. Going the other way and placing 240V across the lamp designed for 100v you get a current of 2.4A. Since it is designed for only 1A it would most likely burn out. All this is very technical and to the questioner I apologize. The answer is: NO, YOU CANNOT REPLACE A 100V LIGHT BULB WITH A 240V LIGHT BULB. <><><> As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself, on electrical circuits, equipment or appliances, always use a test meter to ensure the circuit is, in fact, de-energized. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Asked in Microsoft Windows, Mac OS, Mac OS X
Can the Mac book Pro operate on English 220V electricity?
Asked in Inventions, Home Electricity, Physics
What is a compact fluorescent PI lamp?
What is the full form of PL in PL lamp?
Asked in Microsoft Windows, Mac OS, Windows XP
Will operating a Mac book Pro on English 220V electricity injure the compute in any wayr?
If you have a breaker that has a 120240v and your dryer has a 240v plug can you change the receptacle to a 240v?
Asked in Home Electricity
What would cause light sockets to read 130V in a 240V system when the light switch is off?
Asked in Home Electricity
How many amps does it take to light a 250 watt light bulb?
Asked in Electronics Engineering
Which voltages are supported by a Toshiba power supply?
Asked in Office Supplies
How many volts does a elmers 1950 X pencil sharpener need?
120V light fixtures wall mounted you want to convert to 240V for a house overseas?
What do you need to do to operate a 240V 50Hz halogen lamp on a 120V 60Hz circuit?
Can you rewire a 240v lamp light fitting or small appliance to 110v and if so how?
Replacing 240v light socket what color is negative wire?
Asked in Home Electricity, Household Hints
Can the resistance of a light bulb permanently change after it had been used for years?
Asked in Home & Garden, Home Electricity
Can a 240v fluorescent light tube be plugged into a socket?
Asked in Home Electricity, Batteries
240V European and 120V US does one have an advantage over the other?
Generally 220v anything works easier or with less effort so can be cheaper to run. Appliances that run off 240V draw less current than 120V appliances so lighter wiring and fixtures can be used. However, 240V is more prone to arcing than 120V. Also, 240V is more likely to blow you away than 120V, whereas 120V is more likely to "grab" (Cause your muscles to involuntarily contract, i.e. making your hand grab a conductor) you. Also the US uses 120V because Edison originally used 100V. It was upped over the years to cope with demand. The US also has 240V in residential service for large appliances like ovens and dryers.
Asked in Laptops
What fuse should you use for laptop charger UK?
A typical laptop charger draws less than 1A at 240V, so a 1A fuse should be fine. The power draw for a charger will be written on the charger itself, of course; you'll see something like "Input: 100 - 240 VAC, 1.2 - 0.6A". In this case, the two numbers at the right go together, so at 100V the charger uses 1.2A, at 240V it uses 0.6A.
Asked in Laptops, Apple Computers, MacBook
Can a MacBook run on 220 current?
Do you mean a 220V as in a power in Europe? Then, Check your adaptor. It will tell you the input voltage. If it sates that the range of the input voltage in 100V-240V then YES you can plug in your adapter into a 220V outlet. Please note that some people advise that you plug in the adapter into the power before plugging it into the computer.