Vi Graph. Everything you need to know and understand about Current-Voltage graphs aka I-V Graphs as a GCSE student. The slope of VI graph give us the resistance.
Out of A and B which one represents the parallel combination. Learn about the graph for a resistor a diode a. You may call this graph as V-I or I-V basically it does not matter.
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Learn about the graph for a resistor a diode a. Current I depends upon voltage V or PD appliedTherefore V is taken along X-axis and I along Y-axis the slope VI gives resistance R. The slope of VI graph give us the resistance. If the both wires are of same length and same thickness which of the two is made of a material of high resistivity.
