Electrical Machines The working principle of transformer depends on Newtons law. Coulombs law. Amperes law. Faradays law of electromagnetic induction. Newtons law. Coulombs law. Amperes law. Faradays law of electromagnetic induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 1037.5 r.p.m. 1130 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. 1037.5 r.p.m. 1130 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 600 60 660 40 600 60 660 40 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following motors DC excitation is not required? 3-phase synchronous motor 3-phase synchronous generator hysteresis motor reluctance motor 3-phase synchronous motor 3-phase synchronous generator hysteresis motor reluctance motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. thinner. thicker. rotor can not have any laminations. sipper. thinner. thicker. rotor can not have any laminations. sipper. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? DC series generator. Compounded DC generator. None of these. DC shunt generator. DC series generator. Compounded DC generator. None of these. DC shunt generator. ANSWER DOWNLOAD EXAMIANS APP
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