Electrical Machines The armature resistance of the dc motor is generally of the range 0.1 ohm. 0.5 ohm. 50 ohm. 100 ohm. 0.1 ohm. 0.5 ohm. 50 ohm. 100 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 280 V. 220 V. 240 V. 150 V. 280 V. 220 V. 240 V. 150 V. 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 = P/2*ωm ωe = 2/P*ωm ωe = ωm ωe = P*ωm ωe = P/2*ωm ωe = 2/P*ωm ωe = ωm ωe = P*ωm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to the width more than 3 commutator segment. less than the width of commutator segment. the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. the width more than 3 commutator segment. less than the width of commutator segment. the width of the 1 to 2 commutator segment. the width of the 2 to 3 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque angle, in a synchronous motor, is the angle between the rotating stator flux and rotor flux. None of these magnetizing electric current and back emf. the supply voltage and the back emf. the rotating stator flux and rotor flux. None of these magnetizing electric current and back emf. the supply voltage and the back emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence? All of these RBY BYR BRY All of these RBY BYR BRY ANSWER DOWNLOAD EXAMIANS APP
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