because there is a correlation between resistance and voltage and current.
The equation resistance = voltage divided by current shows that the higher the voltage, the bigger the resistance,, and the bigger the resistance the hotter the filament lamp will get because of the electrons bumping into each other which means there is a loss of energy and that energy is being transferred to the filament making the actual filament bulb hot since there is more thermal energy wasted at the end.
If you plot a graph of current against a range of voltages applied to an incandescent lamp, the result will be a curvedline. This tells us that the current is not proportional to the voltage and, so, the lamp does not obey Ohm's Law.However, the ratio of voltage to current will indicate the resistance for that particular ratio.
Lamps don't 'consume' power; they consume energy. 'Power' merely tells us the rate at which they consume energy. For example, a 60-W lamp consumes energy at the rate of 60 joules every second.The rated power of a lamp applies only at its rated voltage (this information is printed on the lamp's glass envelope).A lamp's behaviour when you reduce its voltage is complicated, because as the temperature of its tungsten filament (I assume you are referring to an incandescent lamp) falls, so does its resistance so there is no direct relationship to the drop in voltage and the corresponding drop in power. All that can be said is that a small drop in voltage results in a verymuch larger drop in power, which is why the brightness of a lamp very often is a guide to whether the mains (supply) voltage has fallen. But if you are asking for a percentage relationship between the two, then there is no straightforward answer.
Yes. If the plug (cap) end of the 250 volt lamp is compatible to the receptacle the lamp would work. The light output of the lamp would not be very bright. Because the working voltage is halved so would the light output.
Use a voltmeter. The normal choices in the US are 120 v and 240 v. If there is no voltmeter, use an ordinary cheap 60 watt lamp. If the lamp lights normally, the outlet has the voltage marked on the bulb. If it's too dim, the outlet has a lower voltage. If it flashes and dies, it's a higher voltage (I said use a cheap lamp).
No, it is not recommended to use a 110-volt lamp in a country that operates on 220 volts without a voltage converter or transformer. The lamp could be damaged or pose a safety risk if plugged directly into a higher voltage outlet. It is advisable to purchase a lamp designed for 220 volts in European countries.
No. different plug, and different mains voltage. though you will be able to get an adaptor.
it will work but the light output will be markedly reduced.
Look on the lamp because somewhere on it the power consumption should be printed.AnswerThere is a legal requirement that a lamp's rated powerand rated voltage is shown on the lamp -often, this is printed on the glass envelope. Realise, however, that any variation from the rated voltage will result in a somewhat-larger variation in the rated power. An alternative method, of course, would be to connect a wattmeter into the lamp's circuit. Strictly-speaking, incidentally, power is NOT 'consumed', but merely tells us the rate at which ENERGY is consumed.
the uses of lamp is to light us.....
the uses of lamp is to light us.....
The voltage in North America can be as low as 110 and as high as 125 volts. The average is about 115 to 117 volts. <><><>><> House voltage in the US is generally 120v line to neutral and 240v line to line. It is referred to as a "120/240v single phase service." Actual voltage can be as low as 110/220 or as high as 125/250.
yes. using step up transformer we can convert low vlg to hi vlg