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How to compute the size of wire with respect to the distance from circuit breaker to the load side?
Petrorabigh
Normally wire is sized by the amperage of the load. In this case the wire size is calculated by knowing the length of the run to the load and the amperage of the device to be connected. By knowing the length, the wire size has to be increased to allow for voltage drop over the distance from the supply to the load.
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∙ 14y ago
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Where is acceleration represented on a distance verses time squared graph?
In general, nowhere, because acceleration is the second derivative of distance with respect to time. However, in the special case of a constant acceleration, the acceleration will be twice the slope of the line, since distance = 0.5 * time squared.
If you have a 2 pole circuit breaker box and cannot get your 240V electric dryer to work should you place 30A on both sides of the box if you purchased a 30A receptacle that reads 125v250v?
Answer for trained people:There is one mistake that a knowledgeable person can make, and wonder why it doesn't work. This happens in some breaker boxes if you place a skinny 240 volt breaker filling an odd location (counting down vertically) and the next even position below that. When this happens, both hot lines are on the same leg. So, instead of 240 volts across the motor, you have no voltage across the winding, but the motor winding is entirely at 120 volts with respect to ground. The upper position of the breaker location must be an even position, and the lower position the next odd position. Most breaker boxes alternate bus legs in horizontal strips, not vertical rows. The first two horizontal rows are on leg 1 (L!), the next two horizontal rows are on leg 2 (L2), the next two rows are leg 1, etc. This requires placing a double pole breaker where it spans both legs L1 and L2.The following condition will occur if you have duplex breakers installed in your panel. This error happens most often when the number of breaker positions already used in the box is a multiple of 4, and you try to use the next available space on one side. The next two spaces on one side both have the same leg, so you can't put a 240 volt breaker there. But some of the boxes let you install it there anyway (mine has plastic bosses that prevent this).You can use a voltmeter to check for this. If you measure 120 volts from each hot prong to ground, but no voltage between the hot prongs, this has happened. A neon voltage tester will show no voltage between the hot prongs, even though it shows voltage from hot to ground.The cure is to move the breaker down one breaker space in the breaker box. You can put another 120 volt breaker in the empty space where the knockout was removed (since cover is required, and the knockout can't be put back), and reserve it for a future 120 volt circuit. (Since my box has wide knockouts, I had to install two dummy 120 volt breakers, one above the 240 volt breaker, and one below it. But they quickly found uses in extra 120 volt circuits.) NEVER use two single pole breakers for a 240 volt circuit, unless the handles are common tied together with a special device made for that purpose.
How is speed calculate?
Average speed is calculated by dividing the total distance covered divided by the time taken. Instantaneous speed is calculated as the derivative of displacement with respect to time.
What is the definition of velocity gradient?
With respect to material being sheared, velocity gradient is the change dv in relative velocity v between parallel planes with respect to the change dr in perpendicular distance r throughout the depth of the material. Velocity gradient has the same dimensions as rate of shear, which is reciprocal seconds.
How do you calculate the tangent on a distance time graph?
You can calculate the tangent for a give time, T, as follows: Substitute the value of the time in the distance-time equation to find the distance at the given time. Suppose it is f(T). Differentiate the distance-time equation with respect to time. For any given time, substitute its value in the derivative and evaluate. That is the gradient of the tangent, v. Then equation of the tangent is f(T) - f(t) = v*(T - t)
What happens to a bulb when you move it to the battery on a circuit?
It doesn't matter where the bulb is in respect to the battery, as long as the circuit is complete, the bulb will light up.
What does speed describe?
The change in distance with respect to time of an object.
What do a speaker do in a circuit?
The purpose of a speaker is to produce sound. With respect to the circuit, it uses up some power, which is provided by other parts of the circuit. The generic name for elements that are designed to consume power is "load".
What do speakers do in a circuit?
The purpose of a speaker is to produce sound. With respect to the circuit, it uses up some power, which is provided by other parts of the circuit. The generic name for elements that are designed to consume power is "load".
What is Impulse response of R-L circuit?
impulse response is exponential increasing with respect to time.
What is the scientific definition for speed?
First derivative of distance with respect to time.
When an object distance from another object is changing?
when A is in motion with respect to B, then B is in motion with respect to A note: A and B are bodies or anything
How do you fing the speed in Algebra?
Average Speed = Total Distance/Total Time.Instantaneous Speed = Derivative of Distance with respect to Time.
Relate distance velocity acceleration using derivatives with respect to time?
I'm not sure about the respect to time, but the equation for velocity is the first derivative of the equation of time (w/ respect to distance) and acceleration is the second derivative. I'm sorry, I don't think I properly answered your question, but this information should be correct. . :)
What is acceleration and distance formula?
The Euclidean distance between between two points with coordinates (x1, y1, z1) and (x2, y2, z2) is sqrt[(x1 -x2)2 + (y1 - y2)2 + (z1 - z2)2] In 2-dimensional space, just drop the z terms. Acceleration is the second derivative of the distance with respect to time. The rate of change of distance, with respect to time is the speed, and acceleration is the rate of change of speed with respect to time.
What does the slope of the line on distance over time graph tell us?
The slope of the line on distance vs time is the same as the change of distance with respect to time...which is called "speed".
Why the load cover very small distance with respect to effort?
Effort is lost in friction .
