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How do you calculate potential difference from a graph?

To calculate the potential difference from a graph, you need to determine the vertical distance between two points on the graph that correspond to different potential values. This vertical distance represents the potential difference between those two points. You can measure this distance using the scales on the axes of the graph.


Why is the gradient on a current-potential difference graph not the resistance?

Resistance is defined by R = V/I where V is potential difference and I is current. It is not: change in pd / change in current - which would be the gradient of the curve. Thus to measure the resistance at a particular pd we simply read off the current at that pd and use the equation above. The problem stems from the way resistors are introduced before non-ohmic components, and for ohmic components it may appear that the gradient is being used for the resistance.


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.


What does the voltage and current graph show in a circuit?

The voltage and current graph in a circuit shows the relationship between voltage (electrical potential) and current (flow of electricity) over time. It helps to understand how these two factors interact and affect each other in the circuit.


What does the voltage vs current graph represent and how can it be used to analyze the relationship between voltage and current in a circuit?

The voltage vs current graph represents the relationship between voltage (V) and current (I) in a circuit. It shows how the current flowing through a circuit changes in response to changes in voltage. By analyzing this graph, one can determine the resistance of the circuit, as resistance is equal to the slope of the graph (R V/I). This can help in understanding how voltage and current interact in a circuit and how different components affect the flow of electricity.

Related Questions

How do you calculate potential difference from a graph?

To calculate the potential difference from a graph, you need to determine the vertical distance between two points on the graph that correspond to different potential values. This vertical distance represents the potential difference between those two points. You can measure this distance using the scales on the axes of the graph.


How do you plot ohms law graph of potential difference versus current?

The current is represented by the horizontal (x) axis, and the potential difference is represented by the vertical (y) axis.If the resulting graph is a straight line, then it confirms that the circuit is obeying Ohm's Law. If the resulting graph is a curve, then the circuit does not obey Ohm's Law.The gradient at any point along of the resulting line represents the resistance of the load for that ratio of voltage to current.


Why is the gradient on a current-potential difference graph not the resistance?

Resistance is defined by R = V/I where V is potential difference and I is current. It is not: change in pd / change in current - which would be the gradient of the curve. Thus to measure the resistance at a particular pd we simply read off the current at that pd and use the equation above. The problem stems from the way resistors are introduced before non-ohmic components, and for ohmic components it may appear that the gradient is being used for the resistance.


What the difference a graph and a chart?

The difference lies in the usage of the words. For example a graph is used in math, and charts are simply a way to represent different types of data.


Why do scientist use table and graph in presenting their data or experiment?

While doing the experiment we can assume many different outcomes. Like for example when you play baseball what is the guarantee that the ball wont swing to the left or the right or its trajectory wont change.Thus scientists tabulate their findings. They then graphically represent them. The graphical representation is used to derive the conclusion for the experiment. Like for example when you are trying to derive Ohm's law you first tabulate the data and then plot a graph for the data you found out. The graph can represent:-A straight line confirming that the current is directly proportional to the potential difference across the conductor.A parabola, then the current is not directly proportional. It depends as a square of the other.Thus with these examples we see the importance of tabulation and graph plotting. Now graph plotting is very useful for computer models.


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.


What does a point represent on a graph?

A point can represent a piece of data or an (x,y) value.


What is the best graph to represent fractions?

the best graph to use to represent fractions is a pie graph, that is if all the fractions denominators are the same...


How can tables and graph represent relations?

Tables and graph represent relations by showing the distribution of occurrence.


What would a graph about masses and volumes represent?

A graph about masses and volumes would represent density.


What does the voltage and current graph show in a circuit?

The voltage and current graph in a circuit shows the relationship between voltage (electrical potential) and current (flow of electricity) over time. It helps to understand how these two factors interact and affect each other in the circuit.


What does the voltage vs current graph represent and how can it be used to analyze the relationship between voltage and current in a circuit?

The voltage vs current graph represents the relationship between voltage (V) and current (I) in a circuit. It shows how the current flowing through a circuit changes in response to changes in voltage. By analyzing this graph, one can determine the resistance of the circuit, as resistance is equal to the slope of the graph (R V/I). This can help in understanding how voltage and current interact in a circuit and how different components affect the flow of electricity.