9V Flashing Bulb Popular Q&A
Q: How can I power a 40w light bulb with 9v?
A: The lamp is operated by a specific voltage, maybe 120V. The power in watts is voltage times current in amps, so the current = 40W / 120V = 0.3333A. Thus we need... Read More »
Q: What is flash·bulb?
A: or flash bulb (flăsh'bŭlb') n. A glass bulb filled with finely shredded aluminum or magnesium foil that is ignited by electricity to produce a short-duration hi... Read More »
Q: What resister do you need for a 6.3v 250mA bulb on an 9v battery ...
A: - The bulb draws 250 mA when energized by 6.3 volts, so the resistance of the bulb is ( 6.3. /. 0.25. = 25.2 ohms. You need a resistor that will drop 2.7 volts ... Read More »
Q: Which equation should be used to calculate how much current in am...
A: I = p/v = 100w/9v = 11.11a. i = p*v = 100w*9v = 900a. i = (p/2)*v = 50w*9v = 450a. i = p*2*v = 100w*(9v + 9v) = 8100a. Read More »
Q: What is a flash bulb?
A: Flashbulb is an electric bulb that can be used only once to produce a brief and very bright Read More »
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