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  • Optimizing Camera Flash Performance: The Role of RC Circuits
    Homework Statement Consider the following circuit in a camera flash where a light bulb is in series with a charged capacitor: a) Derive, but do not solve, the governing differential equation for the circuit (Hint: treat the resistor and the light bulb as a single resistance ) b) Assume
  • Flash Point of Petrol Diesel: Pressure Self Ignition
    Flash point temperature of petrol is lesser than that of diesel at the same pressure Does this mean, if I take petrol and diesel as liquids in separate containers and heat them, rapid vapourisation (rapid enough to sustain a combustion) of petrol occurs at a lower temperature (fire point) than that of diesel?
  • Unexplained bright flash of light inside house - Physics Forums
    The first flash was so bright it immediately woke me up I thought somebody just shined a bright flash light in my face from inches away The second flash 5 seconds later, I was fully awake and sitting up and saw the reflection of it off the wall To me, it looked like an electrical spark or strobe light coming from closer to the ground level
  • Why N-Butane Isobutane Have Different Autoignition Flash Points
    The flash point of n-butane is -60 degree Celsius while that of isobutane is -83 degree Celcius I was confused by these Why does n-butane have a higher flash point but a lower autoignition temperature?
  • How to calculate flash point of mixture? - Physics Forums
    Hey guys, I would like to create a mixture out of two liquids with an ideal flash point of around 70ºF The liquids I have to work with are 200 proof (100%) isopropyl alcohol (2-propanol) and aliphatic hydrocarbon mixture (aka hydrotreated petroleum distillates) What I'm looking for is the
  • How does metering device in an A C cause flash gas?
    TL;DR Summary When the refrigerant in an air-conditioner goes through the metering device, the metering device lower the pressure of the refrigerant a great deal and the refrigerant turns into a mixture of 75% liquid, 25% flash gas How does lowering the pressure of the refrigerant cause 25% of the refrigerant to turn into flash gas?
  • Can large static discharge cause vision to see white flash?
    The white flash was so brief I figured I heard the noise while sinking into a dream and so the white flash was a subconscious imagining of light to go along with the sound, but it was very consistent
  • Calculating Flash Frequency in a Simple Blinking Light Circuit with . . .
    a)Determine the flash frequency with the resistance value shown b) Make a sketch of the voltage across the capacitor in such a circuit, showing several periods




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