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What does the slope of a graph potential difference vs current represent?
resistance of a material
How do you find acceleration of a speed time graph?
Acceleration=change in y graph/change in x graph
Why is there a curve and not a straight line in the graph for a filament lamp?
I had to answer this and found out that............ The line on the graph that represents the filament lamp is curved because the resistance of it increases with supplied voltage Hope this is alright for you :) x
Why is a graph of voltage against current for a filament bulb curved?
Because as current increases, heat increases and therefore resistance increases. Since resistance is the gradient of the graph, the gradient will increase and therefore the graph will curve. (The filament in the bulb is an non-ohmic conductor; its resistance is only constant at a constant temperature.)Another AnswerIncandescent lamp filaments are manufactured from tungsten. Tungsten is classified as 'non-ohmic' or 'non-linear', which means that (in common with most materials, in fact) it does not obey Ohm's Law. For a material to obey Ohm's Law, the ratio of voltage to current (i.e. its resistance) must remain constant for variations in voltage -as you have discovered, tungsten doesn't do this, producing a curve, rather than a linear, graph. As the original answer indicates, the temperature coefficient of resistance of tungsten in such that, as it gets warmer, its resistance increases.Those few materials that do obey Ohm's Law are called 'ohmic' or 'linear' materials.
How can you measure resistivity from a graph?
Take measurements of resistances of various lengths of a wire of constant diameter. Make a graph of resistance against length / cross-sectional area of wire. The gradient of the straight line section will be equal to the resistivity of the wire.
How do you find the equation of a graph?
You find the equation of a graph by finding an equation with a graph.
Find directed graph that has the adjacency matrix?
Find directed graph that has the adjacency matrix Find directed graph that has the adjacency matrix
How will you describe the graph of resistance against current?
If resistance is high that time the current flow is low. Bcoz current always flow through the low resistance path.
What does the slope of a graph potential difference vs current represent?
resistance of a material
Why is the resistance vs current graph is not linear?
resitance is inversly proportional to current when (v) is kept constant <><><><><> Because resistance is a function of temperature.
Where can one find free graph paper?
You can print free graph paper if you have a printer. You can find the free graph paper templates available online at the Print Free Graph Paper website.
How do you find the average velocity on a graph?
The answer depends on what variables the graph shows.
How do you find the no automorphisms for a given graph?
what do you mean? how do you know a graph has no automorphisms? what do you mean? how do you know a graph has no automorphisms?
How do you find acceleration of a speed time graph?
Acceleration=change in y graph/change in x graph
How can you tell if a graph is a sine function or a cosine function?
sine graph will be formed at origine of graph and cosine graph is find on y-axise
What can a travel time graph can be used to find?
A travel time graph can be used to find the distance from the epicenter of an earthquake.
How do you find subgraph in a graph?
simply draw separate graph from the graph from which you have to find the subgraphs, remove exact one edge ont time and proceed to the till end.
