Electrical Machines In DC generators, the brushes remain in contact with conductors which lie in the inter polar gaps. lie under south pole. lie under north pole. there is no hard and fast rule for this. lie in the inter polar gaps. lie under south pole. lie under north pole. there is no hard and fast rule for this. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, lap winding is used in high voltage and low current applications. where constant speed is required. where greater load is connected. high current and low voltage applications. high voltage and low current applications. where constant speed is required. where greater load is connected. high current and low voltage applications. 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 Bl2v2. Bl2v. Blv2. Blv. Bl2v2. Bl2v. Blv2. Blv. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For successful parallel operation of two single phase transformers, the most essential condition is that their KVA ratings are equal percentage impedances are equal turn- ratios are exactly equal polarities are properly connected KVA ratings are equal percentage impedances are equal turn- ratios are exactly equal polarities are properly connected ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 1-phase induction motor, if the forward torque slip is S, what is the backward torque slip? S 1-S 1/S 2-S S 1-S 1/S 2-S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, if P be the number of poles and N be the rpm of the rotor, then frequency of magnetic reversals will be PN/120. PN/3000. PN/2. PN/60. PN/120. PN/3000. PN/2. PN/60. ANSWER DOWNLOAD EXAMIANS APP
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