• How is oil extracted from the ground?

    7 answers · 9 hours ago
  • Doubt in electrical circuits?

    Best answer: The truly correct answer gets into transmission line behavior. That was a senior year electrical engineering college class for me. For you, today, you can assume that electricity flows infinitely fast, and that the current encounters the combined resistance at a single point, all at once. That's not a... show more
    Best answer: The truly correct answer gets into transmission line behavior. That was a senior year electrical engineering college class for me.

    For you, today, you can assume that electricity flows infinitely fast, and that the current encounters the combined resistance at a single point, all at once. That's not a perfect model, but it will work for any problems you will encounter in class, and is good enough for most "real world" situations.

    (Looking ahead, if you're electrical engineering college bound): If your resistor network is (for example) a foot away from the battery, it will take about a billionth of a second for the electrical wavefront to reach the network after you close the switch at the battery. During that billionth of a second, the current will be limited only by the internal impedance of the battery, and could be quite large. After that billionth of a second, a reverse voltage wave form (representing the drop across the resistors) will travel backwards, and the system will achieve steady state.

    Again, for you, today, just worry about the steady state current.
    14 answers · 4 days ago
  • Are there security systems that make countdowns?

    My ex girlfriend tells me her mother installed a secuirty system which is designed to make a countdown, the moment it goes off. Like if someone passes the sensor, it will start t countdown, and can only be disabled if the person gets to th control panel and puts a code. Is there really a secuirty system that does... show more
    My ex girlfriend tells me her mother installed a secuirty system which is designed to make a countdown, the moment it goes off. Like if someone passes the sensor, it will start t countdown, and can only be disabled if the person gets to th control panel and puts a code. Is there really a secuirty system that does countdowns and goes off when times up?
    5 answers · 16 hours ago
  • Where is the gas cap on my Tesla?

    16 answers · 5 days ago
  • What can shield a person from this technology? It is between 1 MHz and 40 Ghz of mixed signals?

    Best answer: I'd imagine a Faraday cage could. Maybe even a couple Faraday cages of overlapping sizes. It's how most RFID blocking wallets and bags work. In fact some police use RFID blocking bags (with a metal mesh) that blocks wifi and other network signals to prevent a suspect from remote wiping their phones. A... show more
    Best answer: I'd imagine a Faraday cage could. Maybe even a couple Faraday cages of overlapping sizes. It's how most RFID blocking wallets and bags work. In fact some police use RFID blocking bags (with a metal mesh) that blocks wifi and other network signals to prevent a suspect from remote wiping their phones.

    A simple example of a Faraday cage is the honeycomb mesh on the door of a microwave which blocks radio wavelengths of certain frequencies.
    5 answers · 1 day ago
  • How do you conduct electricity on a rotating component?

    Best answer: It is called a commutator. They take the form of slip rings and brushes. Look it up. Just use it for power. Send your data wirelessly.
    Best answer: It is called a commutator. They take the form of slip rings and brushes. Look it up. Just use it for power. Send your data wirelessly.
    4 answers · 7 hours ago
  • Do very high frequencies through a bypass capacitor cause a short, and therefore (near) infinite current?

    Best answer: A bypass capacitor's intended function is to provide a short circuit across a circuit resistance to prevent a Voltage from being developed across that resistance at the unwanted higher frequencies. The Voltage source for those undesired high frequencies usually has a very high internal impedance at the higher... show more
    Best answer: A bypass capacitor's intended function is to provide a short circuit across a circuit resistance to prevent a Voltage from being developed across that resistance at the unwanted higher frequencies. The Voltage source for those undesired high frequencies usually has a very high internal impedance at the higher frequencies and it is that high internal impedance that limits the current through the bypass capacitor rather than the reactance of the capacitor at higher frequencies.
    Note: The maximum short circuit current that can be drawn from any Voltage source at any particular frequency is determined by the internal impedance of that Voltage source at that particular frequency.
    10 answers · 4 days ago
  • Could a Star Wars Thermal Detonator be created using advanced knowledge and engineering and a tiny amoeba sized speck of fissable hydrogen?

    Like an extremly extremely small hydrogen bomb?
    Like an extremly extremely small hydrogen bomb?
    6 answers · 2 days ago
  • What exactly is the name of valve electric actuator?

    who knows it?
    who knows it?
    5 answers · 2 days ago
  • What kind of packaging foam is this? Can i use this as insulation for a cooled water hose?

    What kind of packaging foam is this? Can i use this as insulation for a cooled water hose?

    I am making a small water cooler using peltier modules. Can i use this foam to wrap around the hoses that has cooled liquid passing through them? will it insulate the hose and liquid from ambient heat?
    I am making a small water cooler using peltier modules. Can i use this foam to wrap around the hoses that has cooled liquid passing through them? will it insulate the hose and liquid from ambient heat?
    4 answers · 1 day ago
  • What secondary/high school subjects can I teach with the following degree.?

    3 year Electrical Engineering Technology bachelors degree.
    3 year Electrical Engineering Technology bachelors degree.
    4 answers · 1 day ago
  • Industrial designing, chemical and mechanical enginering those things i want to study but should i add something else??

    Im on 11th now and im almsot ready for the next step jiat nees to graduate in 2019
    Im on 11th now and im almsot ready for the next step jiat nees to graduate in 2019
    4 answers · 2 days ago
  • What is a rotary engine?

    6 answers · 4 days ago
  • Resistance is taken as R , voltage is taken as v then why current is not taken c instead it's taken as i in chemistry ?

    Guys,I read having debate with my friend, and he asked me this question , please help me with this question . I will be thank full . Question :- resistance is taken as R , voltage is taken as v then why current is not taken c instead it's taken as i in chemistry? Thank you.
    Guys,I read having debate with my friend, and he asked me this question , please help me with this question . I will be thank full . Question :- resistance is taken as R , voltage is taken as v then why current is not taken c instead it's taken as i in chemistry? Thank you.
    5 answers · 3 days ago
  • How can the problem be in the outlet and the noise be in the panel?

    Best answer: [1] BREAKER OR FUSE THAT LINKS TO THAT PATH OPEN.
    [2] BROKEN WIRE INSIDE THE PANEL LINKS TO THAT CIRCUIT PATH.
    [3] SAME TROUBLE SHALL HAPPEN AGAIN AND AGAIN EVEN IT IS FIXED FOR A WHILE, BECUSE TOO MANY HEAVY POWER APPLIANCES ARE CONNECTER TO THE SAME PATH, AND ALSO HIGH RISK TO CATCH FIRE BY OVERLOADED WIRING.
    Best answer: [1] BREAKER OR FUSE THAT LINKS TO THAT PATH OPEN.
    [2] BROKEN WIRE INSIDE THE PANEL LINKS TO THAT CIRCUIT PATH.
    [3] SAME TROUBLE SHALL HAPPEN AGAIN AND AGAIN EVEN IT IS FIXED FOR A WHILE, BECUSE TOO MANY HEAVY POWER APPLIANCES ARE CONNECTER TO THE SAME PATH, AND ALSO HIGH RISK TO CATCH FIRE BY OVERLOADED WIRING.
    9 answers · 6 days ago
  • Induction motor?

    11 answers · 7 days ago