Q3 Shunt d.c. generator with armature and shunt field resistance of 0.5, and 250N respectively gave the following readings when run at constant speed : Load current (A) 10 20 30 40 Terminal p.d. (V) |...

Extracted text: Q3 Shunt d.c. generator with armature and shunt field resistance of 0.5, and 250N respectively gave the following readings when run at constant speed : Load current (A) 10 20 30 40 Terminal p.d. (V) | 480 470 465 460 455 Plot the curve of internal generated e.m.f. against load current. Explain fully the steps by which this curve is obtained and tabulate the values from which it is plotted