A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly
A. 150 V
B. 175 V
C. 240 V
D. 290 V
Answer: Option C
A. 150 V
B. 175 V
C. 240 V
D. 290 V
Answer: Option C
A cumulatively compounded long shunt generator when operating as a motor would be
A. Cumulatively compounded long shunt
B. Differentially compounded long shunt
C. Cumulatively compounded short shunt
D. Differentially compounded short shunt
A. Demagnetization only
B. Cross magnetization as well as magnetization
C. Cross-magnetization as well as demagnetizing
D. Cross magnetization only
w2/w1 = E2/E1
1200/1000 = E2/200
E2=240v
N1 /N2 =E1/E2
1000/1200=200/E2
E2=240 v
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