0
How do you plot ohms law graph of potential difference versus current?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is the shape of graph of voltage versus current for an ohmic material?
Linear.
How do you set out a line graph showing current vs voltage?
its like a bar graph but with little crosses and you join them up with lines
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.
What is the zener region?
The zener region describes the area on the performance curve (a graph of voltage across versus current through the junction) of a zener diode. The diode acts like a "regular" diode in the forward biased direction. When some 0.7 volts or so is reached, forward current begins to climb rapidly as voltage is increased (for silicon diodes.) But in the reverse direction recall that as the diode is reverse biased, a small amount of current will flow (because of minority carriers). This "trickle" of current will continue until the "zener voltage" is reached, and then the diode will begin to conduct heavily. On the graph, this is the zener region. Zener diodes can be made to breakdown at a specific voltage, and their ability to conduct reverse current can be increased by manufacturing a larger diode. That means there are a range of voltages and wattages of zener diodes available. Wikipedia has more information and that graph. Use the link provided to get there.
What does the slope of voltage-current curve represent?
It depends. If voltage is drawn along the horizontal axis, then the slope at any point on the graph represents the reciprocal of resistance at that point. If current is drawn along the horizontal axis, then the slope at any point on the graph represents the resistance at that point.
What does the slope of a graph potential difference vs current represent?
resistance of a material
What is the difference frequency graph versus percentage graph?
The main difference is that the vertical scale for a frequency graph is in units (or numbers) whereas in a percentage graph, it is in percentages,
What is the shape of graph of voltage versus current for an ohmic material?
Linear.
How do you calculate potential difference from a graph?
The answer will depend on what information is plotted on the graph!
How does a graph showing speed differ from a graph showing acceleration?
Speed can be shown on a graph of position versus time, and acceleration can be shown on a graph of speed versus time.
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 shape would the graph of U versus x have if a particle were in a region of neutral equilibrium?
In neutral equilibrium, displacement in either direction would not affect the potential energy of the particle, therefore, the graph would be horizontal.
What statement describes the potential energy diagram of an exothermic reaction?
The difference in potential energy between the reactants and products.
What type of graph is used for acceleration?
Speed-Versus-Time, Distance-Versus-Time.
Graph of resistance of filament lamp against potential difference?
It will vary from 0 to a certain value but at a slower rate.
What shape do you expect for a graph showing the position of a motorcycle versus time if the motorcycle is speeding up with a constant acceleration?
The position versus time graph is parabolic.
What does the slope of the graph of photoelectric current versus intensity signify in the photoelectric effect?
The current rises as does the intensity of light detected. The more light the greater the intensity, and the greater the current. The answer to the question is that photoelectric current displayed on a graph is shown as a slope that varies with the intensity of light. Someimes it can go up, sometimes it can go down.The ultimate answer is that the photoelectric effect is unreliable, but it is improving!
