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Q5. a) Describe the no-load saturation characteristics of a D.C. generator. (6)

b) A coil of inductance 2 H and unknown resistance is connected to a D.C. supply of 100 volts. After 4 ms the current has risen to 75% of its final steady state value. Calculate EACH of the following:

(a) The resistance by the coil. (6)

(b) The energy stored in the coil when the current has reached its steady state value. (6)