• How does three-phase electricity work?

    Best answer: 3 phase power voltage is 380V in Poland and sure it is much danger than 220V. But I guess the washer is still using single phase 220V power because 3 phase power source can be used either 380V or 220V as required. Do not worry about the warning from your manager provided you unplug or turn off the power source to... show more
    Best answer: 3 phase power voltage is 380V in Poland and sure it is much danger than 220V. But I guess the washer is still using single phase 220V power because 3 phase power source can be used either 380V or 220V as required. Do not worry about the warning from your manager provided you unplug or turn off the power source to washer before doing any inside cleaning to it.
    4 answers · 2 days ago
  • Is there a software program which can be used for simulating solar balloons which harvest the sun's energy?

    I'm trying to find something where I can build a solar balloon which will be 6 km above the ground, add the necessary components, and run a simulation on the amount of energy that can be harvested and used on the ground.
    I'm trying to find something where I can build a solar balloon which will be 6 km above the ground, add the necessary components, and run a simulation on the amount of energy that can be harvested and used on the ground.
    5 answers · 2 days ago
  • Why hasn’t anyone designed a humanoid robot yet?

    Best answer: So far. simple female humanoid robot has been made in Japan and China, only able to speak ,dance and showing emotion on face those simple acting.
    Best answer: So far. simple female humanoid robot has been made in Japan and China, only able to speak ,dance and showing emotion on face those simple acting.
    7 answers · 4 days ago
  • I'm doing Single Stage Transistor Amplifier experiment. What is the Equipment tht hv a direct effect on the accuracy of the data?

    list of equipment and components used: DC Power Supply Project Board Multimeter Oscilloscope Function Generator Resistors Capacitors NPN Transistor Connecting lead
    list of equipment and components used: DC Power Supply Project Board Multimeter Oscilloscope Function Generator Resistors Capacitors NPN Transistor Connecting lead
    6 answers · 3 days ago
  • How to fix this solar panel?

    How to fix this solar panel?

    I am very new to electronics, electronics is only my hobby. + contact broke off (see picture) when I was soldering a wire to it. Now multimeter reads 0V. I tried to make another contact but the solder wants to stay on the top of the iron and won´t stay in place of the + contact. What can I do?
    I am very new to electronics, electronics is only my hobby. + contact broke off (see picture) when I was soldering a wire to it. Now multimeter reads 0V. I tried to make another contact but the solder wants to stay on the top of the iron and won´t stay in place of the + contact. What can I do?
    7 answers · 5 days ago
  • Can I put half of my protein shake into the car engine coolant,as it's almost empty and I only have my protein shake left?

    Best answer: I wouldn't advise it unless you want to destroy your car. Just use a bottle of water. It's only like $2 at most. Much cheaper than replacing the entire engine.
    Best answer: I wouldn't advise it unless you want to destroy your car. Just use a bottle of water. It's only like $2 at most. Much cheaper than replacing the entire engine.
    7 answers · 6 days ago
  • Should I become a welder?

    So I’m currently in welding II in highschool which is basically advancing welding. And I’m thinking of taking four years of it. I find it kind of rewarding finishing welds and I don’t mind getting dirty. But should I?
    So I’m currently in welding II in highschool which is basically advancing welding. And I’m thinking of taking four years of it. I find it kind of rewarding finishing welds and I don’t mind getting dirty. But should I?
    9 answers · 1 week ago
  • Why is Ie = Ic + Ib but IR2 is not = IR1 + Ib?

    Why is Ie = Ic + Ib but IR2 is not = IR1 + Ib?

    Best answer: During transistor dc conduction Ie splits unequally at the emitter-base junction with the majority of emitter's current going to collector and then it's what's left of Ie that makes up the transistor's total dc base current Thus Ie must = Ic + Ib. IR1(dc) consist of the dc current through R2... show more
    Best answer: During transistor dc conduction Ie splits unequally at the emitter-base junction with the majority of emitter's current going to collector and then it's what's left of Ie that makes up the transistor's total dc base current Thus Ie must = Ic + Ib.

    IR1(dc) consist of the dc current through R2 joined by the transistor's dc base current at the R2-base junction,
    Thus IR1 dc must = (IR2 + IB)dc
    Consequently;
    IR2 dc = (IR1 - Ib)dc
    4 answers · 6 days ago
  • Flying cars are never going to happen are they?

    Best answer: No, you are right. Any 'flying cars' that are built are purely experimental. Some may be used, but would need to be regulated by aviation standards. Of course, once driven onto public roads, they would then be subject to roadworthy standards. There is no way they would be allowed to land or take off on... show more
    Best answer: No, you are right. Any 'flying cars' that are built are purely experimental. Some may be used, but would need to be regulated by aviation standards. Of course, once driven onto public roads, they would then be subject to roadworthy standards. There is no way they would be allowed to land or take off on public roads, either.
    Then there are practical things like maintenance, if your car stops on a road you pull over and call for road service. If your flying car stops, you can't pull it up to the nearest cloud. It would need to descend to ground. In a crowded city?
    Also practically, aren't cars dangerous enough only moving along made road surfaces in 2 dimensions, without adding a 3rd. dimension like height? Can you imagine the carnage with crowded skies! No- one would be safe even within their homes from crashing flying cars.
    Never. Cannot happen.
    13 answers · 2 weeks ago
  • Can Energy exist by itself or Electricity without A Genrator? Since energy must have a source Universe is not Random,Evolution true or false?

    Best answer: Energy does exist by itself and always has. We only need generators when WE want to CONTROL energy. Generators do NOT create energy. A generator converts kinetic energy into electricity. The kinetic energy is usually derived from heat energy by burning fuel. The fuel contains chemical... show more
    Best answer: Energy does exist by itself and always has.

    We only need generators when WE want to CONTROL energy. Generators do NOT create energy. A generator converts kinetic energy into electricity. The kinetic energy is usually derived from heat energy by burning fuel. The fuel contains chemical energy.

    ------------------
    Since the energy that makes up our universe has always existed, there is NO source.

    Our universe will eventually reach a point of minimum energy, but it will never be zero. Even in that state, random vacuum fluctuation will occur. Most will be small an insignificant, but, after trillions of years, one might be large enough to trigger another Big Bang.

    Chaos Theory says order is contained within chaos. Permanent laws are probably based on abstract mathematical concepts. How many sevens can you hold in your hand?
    5 answers · 1 week ago
  • Flashlight using series vs. series batteries, which brighter? Longer life?

    All other things being equal, if one flashlight is a stubby one using 2 batteries side by side (parallel), the other flashlight is a long and narrow one using same 2 batteries but end to end (series). Which is brighter? Which lasts longer?
    All other things being equal, if one flashlight is a stubby one using 2 batteries side by side (parallel), the other flashlight is a long and narrow one using same 2 batteries but end to end (series). Which is brighter? Which lasts longer?
    6 answers · 1 week ago
  • Chinese inverters work well but have no fuse. What do you think about the size of the in-line fuse I put on the 3000-watt inverter I bot?

    Best answer: 3000 watts at 110 volts is 27 amps.

    you are good with 30 amp for a resistive load.

    But what is the VA rating?
    Best answer: 3000 watts at 110 volts is 27 amps.

    you are good with 30 amp for a resistive load.

    But what is the VA rating?
    4 answers · 6 days ago
  • Which is the Better Way of Running a Pump?

    Background: A pump used to pump down a holding tank in the wastewater treatment industry operating off a VFD. Which is better: Run the pump for longer periods of time, at lower speeds, turning on/off less? OR Run the pump for shorter periods of time, at higher speeds, turning on/off more? In Terms of: Pumping... show more
    Background: A pump used to pump down a holding tank in the wastewater treatment industry operating off a VFD. Which is better: Run the pump for longer periods of time, at lower speeds, turning on/off less? OR Run the pump for shorter periods of time, at higher speeds, turning on/off more? In Terms of: Pumping efficiency Wear & tear on the motor Energy savings Anything else you could think of...
    5 answers · 1 week ago