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What is the shape of graph of voltage versus current for an ohmic material?
Wiki User
∙ 13y ago
Linear.
Wiki User
∙ 13y ago
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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.
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.
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
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 is an exception to ohm's law?
Most conductors and electronic devices are 'exceptions' to Ohm's Law. Ohm's Law only applies when the ratio of voltage to current remains constant for variations in voltage. Materials which behave in this way are termed 'linear' or 'ohmic'. But mostmaterials do not behave in this way, and are termed 'non-linear' or 'non-ohmic'.In simple terms, if you plot a graph of voltage against current, and the result is a curve, then that material does not obey Ohm's Law.
What is the slope of the graph of versus for an ohmic material?
"Ohmic" means it obeys Ohm's law (V=IR, i.e., voltage = current x resistance). Since Ohm's law can be understood to be a definition of resistance, what this really means is that the material has a constant resistance. In such a case, the slope of current as a function of voltage will be a straight line passing through the origin.
How do you plot graph on forward and reverse diode bias?
You generally plot a graph of Voltage v/s Current (with voltage on Y axis and current on the X axis). The graph will not be a straight line.
Why is the graph of the non-ohmic conductor is curved in nature?
Ohmic (or 'linear') materials obey Ohm's Law. That is, their ratio of voltage to current remains constant for variations in voltage. Ohmic materials, therefore, produce a straight line graph when we plot current against variations in voltage;Non-ohmic (or 'non-linear') materials do not obey Ohm's Law. That is, their ratio of voltage to current variesfor variations in voltage. This means that non-ohmic materials produce a curved line graph when we plot current against variations in voltage.
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.
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.
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
What does the slope of a graph potential difference vs current represent?
resistance of a material
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.
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.
Is there any similarity between the graphs plotted between voltage and current?
When you plot a graph of voltage against current, you can end up with a straight line or a curved line.If you have a straight line, then it shows that the change in current is directly proportional to the change in voltage and, so, the circuit is obeying Ohm's Law. If the graph is a curve, then the change in current is not proportional to the change in voltage and, so, the circuit is not obeying Ohm's Law.In the case of a straight-line graph, the gradient of the graph indicates the resistance of the circuit. The greater the gradient, the higher the circuit resistance.In the case of a curved-line graph, the gradient (i.e. the tangent) at each point along that curve will indicate the (changing) resistance at each of those points.
Does voltage vs current graph passes through origin?
Yes. While it isn't clear what device you are talking about, and different devices have different characteristic curves (for example, a straight line for a resistor), a voltage is required for a current to flow, so if there is no voltage, there won't be any current, either.
What is the significance of the area under the curve on a current v voltage graph?
This value would represent the value for Power
