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A difference of potential (voltage) and a conductor connected to the voltage source will cause current flow. Not that you'd want to "short out" a voltage source with a piece of wire, but just the source of voltage and the conductor would permit current to flow. If you took a piece of wire and touched it to the terminals of a good battery, current would flow. It takes just those two things to create a current.
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How many 1.5 V batteries are needed to produce 40mA of current if the resistance is equal to 150?
4
How many engineers are needed to make a can of soda?
to successfully engineer a can of soda pop, 37 Muslim extremists driving lambos are needed to deliver the engineers to work, and create the can.
How many people are needed to work at a coal power plant everyday?
How many people are needed to work at a coal power plant depends on the size and age of the plant, among other things.
What is the best way to describe the function of a typical transistor in an electronic circuit?
A transistor in a circuit can do many things. It can be used to amplify voltage signals, or current signals, create current and voltage sources, make buffers, and so on. Transistors also find a major use in logic circuits (ie, where signals can either be a '0' or a '1'), where they essentially act as a switch, and can be used to create inverters, AND gates, OR gates, and all sorts of useful components. By itself, a transistor is a three-terminal device that can control the current going through two of its terminals through the voltage applied at the third terminal. But there are many applications for a transistor in its many different configurations, which is why it is so important in modern electronic technology.
600 volts is how many KVA?
It is apples and oranges--kVA and volts are different units describing different things. Determining kVA requires measuring both voltage and current.
How many things are needed to have current?
3 things Volts, ohms, and amps
How many chromosomes are needed to make a human?
46 chromosomes are needed to create a human
How many workers were needed to create the Winter Palace?
1
How many points of tangency are needed to create an S curve?
2 ponts to create an S curve
How many non collinear points are needed to create a plane?
To create a plane, infinitely many. But to uniquely define one, 3 are enough.
What three things are needed for an election?
There are many things needed for an election. The first of these reasons being a reason for a held election.
How many blocks would be needed to create a 20 step staircase?
210
It has been said that many great discoveries lie in wait for the tools needed to make them?
It means that there are many things out there for us to discover, but in order to find them, we must first create the tools/technology in order to make the discoveries.
How many non-collinear points are needed to create a plane?
To create a plane, infinitely many. To uniquely determine a plane, just three.
How many DVD disks are needed to create a backup image of Win 7?
4
How many digits are needed to create a number in the hundreds?
Normally, at least three, but I can do it with two digits:27
Why did you create the website answers.com?
Because many people had questions about things and we wanted to answer them
