Hamad Electrical Machine Design 13/12/2021 A. 1.5 to 2.5 A/mm2 B. 3.5 to 4.5 A/mm2 C. 4.0 to 5.0 A/mm2 D. 5.4 to 6.2 A/mm2 Related Mcqs: In _________ machines, the size of the shaft is decided by the critical speed which depends on the deflection of the shaft?A. small B. medium C. large D. any of the above.... Materials exhibiting zero value of resistivity are known as ____________ ?A. conductors B. semiconductors C. insulators D. superconductors... The time taken by the machine to attain 0.632 of its final steady temperature rise is called_____________?A. heating time constant B. cooling time constant C. either A. or B. D. none of the above... Which of the following problem arises in D.C. motors which are fed from thyristor bridge circuits ?A. Increased I R losses B. Increased core losses C. Poor commutation D. Change in motor parameters E. All of the above... The input impedance of a JFET is _____________that of an ordinary transistor?A. equal to B. less than C. more than D. none of the above...
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