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The slope of the voltage-current (VI) characteristics for a tungsten lamp is positive because as the current increases, the temperature of the tungsten filament rises, leading to an increase in resistance. This phenomenon is due to the positive temperature coefficient of resistance of tungsten, where the resistance increases with temperature. Consequently, the relationship between voltage and current becomes non-linear, resulting in a positive slope in the VI characteristics. This behavior is typical for incandescent lamps, where the filament's temperature significantly affects its electrical properties.
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Is the black wire on a lamp connection plus or minus?
The color of the wire does not indicate its polarity. In electrical systems, the polarity is typically designated as positive (+) and negative (-) rather than plus or minus. To determine which wire is positive or negative on a lamp connection, you would need to consult the manufacturer's instructions or use a multimeter to check the voltage.
You are wiring a LED lamp through a transformer you have a polarized plug and you know positive and negative The transformer is marked live and neutral Does live correspond with positive or negative?
LED's are DC voltage. Transformers are AC voltage. There is no positive or negative on AC voltage. You would need a diode to change the AC to DC, then there would be positive and negative voltages.
What to use to measure height of a lamp?
probably to measure a lamp depending on if its a desk lamp or a stand up lamp, if you use a stand up lamp, i would suggest using either feet or inches
How is a shadow formed on a paper?
Well here are the steps: 1.get a paper,and a lamp 2.put the paper down. 3.Then put the lamp facing the paper. 4.Then put your hand under the lamp's light. DONE!!
How many times is lamp used in the Bible?
The word "lamp" is in the King James Version of the Bible 13 times. It is in 13 verses.
