Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? increase decrease either increase or decrease None of these increase decrease either increase or decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous machine has P number of poles, find the relation between electrical angular momentum (ωe) and mechanical angular momentum (ωm)? ωe = ωm ωe = P/2*ωm ωe = P*ωm ωe = 2/P*ωm ωe = ωm ωe = P/2*ωm ωe = P*ωm ωe = 2/P*ωm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main purpose of providing tertiary winding in a three phase transformer is to carry extra load. None of these to suppress harmonic and unbalance in voltage. to interconnect three voltage systems. to carry extra load. None of these to suppress harmonic and unbalance in voltage. to interconnect three voltage systems. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf increases upto a limit and then remains almost constant. remains constant. decreases. increases. increases upto a limit and then remains almost constant. remains constant. decreases. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A compound motor has tertiary winding. both shunt and series field winding. only series field winding. only shunt field winding. tertiary winding. both shunt and series field winding. only series field winding. only shunt field winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Resistance commutation is used generally in case of DC machines bellow 5 kW. DC machines above 10 kW. None of these fractional kW DC machines. DC machines bellow 5 kW. DC machines above 10 kW. None of these fractional kW DC machines. ANSWER DOWNLOAD EXAMIANS APP
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