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How to compute the size of wire with respect to the distance from circuit breaker to the load side?
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.
What else can I help you with?
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.
When do two different distance-time graphs have matching velocity-time graphs?
Two different distance-time graphs have matching velocity-time graphs when the slope of the distance-time graph represents the velocity in the velocity-time graph, as velocity is the derivative of distance with respect to time. This means that the steeper the distance-time graph, the greater the velocity on the velocity-time graph at that point.
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.
When does a cyclist appear to be stationary with respect to another moving cyclist?
A cyclist appears to be stationary with respect to another moving cyclist when they are both moving at the same speed and direction. This occurs when they maintain a consistent distance and speed relative to each other.
What is the derivative of current with respect to voltage in an electrical circuit?
The derivative of current with respect to voltage in an electrical circuit is called conductance, which represents how easily current flows through the circuit in response to changes in voltage.
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 is the derivative of distance with respect to time in the context of motion?
The derivative of distance with respect to time in the context of motion is the velocity of an object. It represents how fast the object is moving at a specific moment in time.
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 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 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.
What does the voltage current graph represent in an electrical circuit?
The voltage-current graph in an electrical circuit represents the relationship between voltage (V) and current (I) flowing through the circuit. It shows how the current changes with respect to the voltage, indicating the behavior and characteristics of the circuit components.
How do you fing the speed in Algebra?
Average Speed = Total Distance/Total Time.Instantaneous Speed = 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
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.
