The circuit is not open but it acts as if open. This characteristic can be seen in diodes where a certain amount of voltage is needed for the current to go through. If the voltage is lower than that no current goes through.
Resistance being reciprocal of slope is not totally correct and doesn't...
The definition you referred to is more for differential or dynamic resistance not the static one which I believe what the question asks for.
https://en.wikipedia.org/wiki/Electrical_resistance_and_conductance#Static_and_differential_resistance
If we just assume this graph was produced by...
I personally think the answer should be C because to work out the resistance you just read it off the graph for voltage V2 which is I2. So the resistance should be V2/I2 and for the second part I believe it decreases because at point V1 the resistance is infinite (open circuit) and then it is...
Homework Statement
The question reads:
The following graph shows the relationship between voltage V and current I, through a particular electrical component. (The line in graph is straight, not showing properly in the photo)
What is the electrical resistance of this component when the...