HW (1.2): The following are the magnetic characteristics of a D.C. generator driven at 1000 r.p.m. Ir (A) 1 4 6 8 10 E. (V) 160 260 390 472 522 550 Determine: (i) The voltage to which it will excite on OC. (ii) The approximate value of the critical resistance of the shunt circuit. (iii) The terminal potential difference and load current for a load resistance of 42, the

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HW (1.2): The following are the magnetic characteristics of a D.C. generator driven
at 1000 r.p.m.
It (A)
1
4
6.
10
E. (V) 160 260
390
472
522
550
Determine:
(i) The voltage to which it will excite on OC.
(ii) The approximate value of the critical resistance of the shunt circuit.
(iii) The terminal potential difference and load current for a load resistance of 42, the
armature and field resistance are 0.4 Q and 60 Q respectively.
Transcribed Image Text:HW (1.2): The following are the magnetic characteristics of a D.C. generator driven at 1000 r.p.m. It (A) 1 4 6. 10 E. (V) 160 260 390 472 522 550 Determine: (i) The voltage to which it will excite on OC. (ii) The approximate value of the critical resistance of the shunt circuit. (iii) The terminal potential difference and load current for a load resistance of 42, the armature and field resistance are 0.4 Q and 60 Q respectively.
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