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The voltage-current readings of a certain material are shown in the table given below: Voltage (V): 10 V, 20 V, 30 V Current (I): 2 A, 3 A, 4 A Study the table.
Below is the diagram of a transformer:
Study the diagram:
Plot a graph showing the variation of current with voltage for the material GaAs. On the graph, mark the region where : (a) resistance is negative, and (b) Ohm's law is obeyed.
The voltage–current readings of a certain material are shown below. Voltage (V): 10 V 20 V 30 V Current (I): 2 A 3 A 4 A The conductor used is:
The voltage–current readings of a certain material are shown below. Voltage (V): 10 V 20 V 30 V Current (I): 2 A 3 A 4 A The resistance of the material when the voltage is 30 V is:
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