Electrical Machines Voltage regulation of transformer is given by (E2 - V2) / E2 (V2 - E2) / V2 (V2 - E2) / E2 (E2 - V2) / V2 (E2 - V2) / E2 (V2 - E2) / V2 (V2 - E2) / E2 (E2 - V2) / V2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The working principle of transformer depends on Amperes law. Faradays law of electromagnetic induction. Newtons law. Coulombs law. Amperes law. Faradays law of electromagnetic induction. Newtons law. Coulombs law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of DC motor Both back emf as well as line current fall. Back emf increase but line current falls. Back emf falls and line current increase. Both back emf as well as line current increase. Both back emf as well as line current fall. Back emf increase but line current falls. Back emf falls and line current increase. Both back emf as well as line current increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is equal as power transformer. higher than power transformer. none of these. lesser than power transformer. equal as power transformer. higher than power transformer. none of these. lesser than power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on rotor speed. synchronous speed. core loss component. shaft torque. rotor speed. synchronous speed. core loss component. shaft torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will increase by 200% remain unaltered reduced to half increase by 100% increase by 200% remain unaltered reduced to half increase by 100% ANSWER DOWNLOAD EXAMIANS APP
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