Electrical Machines Flux density under leading pole tips in case of generator will decrease increase None of these either increase or decrease decrease increase None of these either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of a alternator, if P = number of poles and N = revolution made per second? PN / 2 Hz. 120P / N Hz. 120 / PN Hz. 120N / P Hz. PN / 2 Hz. 120P / N Hz. 120 / PN Hz. 120N / P Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of a dc motor is given by EbIa. none of these. EbIa2. EIa. EbIa. none of these. EbIa2. EIa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is equal to supply voltage. double the supply voltage. All of these half of the supply voltage. equal to supply voltage. double the supply voltage. All of these half of the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In alternator, the rotary part is none of these. core. magnetic field poles. armature. none of these. core. magnetic field poles. armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Bl2v. Bl2v2. Blv2. Blv. Bl2v. Bl2v2. Blv2. Blv. ANSWER DOWNLOAD EXAMIANS APP