Electrical Machines A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle? 60° 18° 20° 30° 60° 18° 20° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC Series motor is connected across an AC supply it will run at normal speed. burn. run at lower speed. not run. run at normal speed. burn. run at lower speed. not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a specific open-circuit voltage of a DC generator, the short-circuit electric current will be maximum when it is cumulatively compounded. separately excited. shunt connected. differentially compounded. cumulatively compounded. separately excited. shunt connected. differentially compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the reason for stationary armature essential in alternators above 5 KVA? All of these Operating cost is less. Collecting of large current is simple. Insulation requirement is less. All of these Operating cost is less. Collecting of large current is simple. Insulation requirement is less. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if φ is the flux per pole and f is the frequency of the emf induced E then E ∝ φ/f E ∝ f/φ E ∝ 1/(φf) E ∝ φf E ∝ φ/f E ∝ f/φ E ∝ 1/(φf) E ∝ φf ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Alternator operates on the principle of self induction. mutual induction. self or mutual induction. electromagnetic induction. self induction. mutual induction. self or mutual induction. electromagnetic induction. ANSWER DOWNLOAD EXAMIANS APP
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