Figure 1 shows a graph of Current (mA) vs Voltage (V) for three different materials namely A, B and C. Based on the graph, answer the following questions: (i) Sketch a graph for Power (W) vs Current (mA) for Material B. On the sketched graph, show the values of power when the values of current are 50 mA and 100 mA. Assume Materials A and C have cylindrical shape with the same length. If cross sectional area of Material A is double as compared to Material C, determine the ratio of resistivity of Material A (ii) to Material C. (iii) Find the equivalent conductance, G, when the three materials are connected in series and also when they are connected in parallel. Give your answer in two decimal points. B 100 80 60 40 20 1 3 4 Voltage (V) Figure 1 Current (mA)

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Types of Charge Carriers

A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.