This question is about a closed electrical black box with three terminals A, B and C as show. If is known that the electrical elements connecting the points A, B, C inside the box are resistance (if any) in delta formation. A student is provided a variable power supply, an ammeter and a voltmeter Schematic symbols for these elements are given in part (a). She is allowed to connect these elements externally between only two of the terminals (AB or BC of CA) at a time to form a suitable circuit. (a) Drawa suitable ci9ucuit using the above elemets to measure voltage across the terminals A and B and the current drawn from power supply as per Ohm's law. (b) She obtains the following readings in volt and millampera for the three possible connections to the blace box (b) She obtains the following readings in volt and millampere for the three possible connection to theblack box. {:("AB","BC","AC"),("V(V)/(mA)","V(V)/(mA)","(V(V)/(mA)"),("0.530.54","0.830.17","0.850.15"),("0.770.77","1.650.35","1.700.30"),("1.021.01","2.470.53","2.550.45"),("1.491.51","3.290.71","3.40.60"),("1.982.02","4.110.89","4.250.75"),("2.492.51","4.941.06","5.100.90"):} In each plot V (on Y-axis) -1 (on X-axis) on the graph papers provided. Preferably use a pencil to plot. Culculate the volues of resistances from the plots. Show your calculations below for each plot clearly indicating graph number. ( c) From your calculations above draw the arrangement of resistances inside the box indicating the values.