3. The operation of a 3-phase induction motor is based upon the application of: (a) Faraday's law (b) Faraday's Law and the Lorentz force (e) Faraday and Newton" Laws (d) none of above. 4. When the elevator's cabin is loaded with people and moves from the ground to fourth floor, the rotor circuit represented by: (a) R2- 1) R,Xz (b) R2X2 (e) R2G- 1) R X2 (d) R- 1) R2 N 5. The rotor winding of 3-phase slip-ring I.M is generally --- connected. (a) Star (b) delta (c) zig-zag (d) auto. 6. The reactance of rotor circuit of 3-phase L.M is maximum (a) At No-load (b) At Full-Load (c) At Stand-Still (d) None of above.
3. The operation of a 3-phase induction motor is based upon the application of: (a) Faraday's law (b) Faraday's Law and the Lorentz force (e) Faraday and Newton" Laws (d) none of above. 4. When the elevator's cabin is loaded with people and moves from the ground to fourth floor, the rotor circuit represented by: (a) R2- 1) R,Xz (b) R2X2 (e) R2G- 1) R X2 (d) R- 1) R2 N 5. The rotor winding of 3-phase slip-ring I.M is generally --- connected. (a) Star (b) delta (c) zig-zag (d) auto. 6. The reactance of rotor circuit of 3-phase L.M is maximum (a) At No-load (b) At Full-Load (c) At Stand-Still (d) None of above.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:3. The operation of a 3-phase induction motor is based upon the application of:
(a) Faraday's law (b) Faraday's Law and the Lorentz force (e) Faraday and Newton"
Laws (d) none of above.
4. When the elevator's cabin is loaded with people and moves from the ground to
fourth floor, the rotor circuit represented by:
(a) R - 1) R2X2 (b) R2X2 (e) R2C - 1) R X2 (d) R;G-1) R2X2
The rotor winding of 3-phase slip-ring I.M is generally --- connected.
(a) Star
(b) delta
(c) zig-zag (d) auto.
6. The reactance of rotor circuit of 3-phase LM is maximum
(a) At No-load (b) At Full-Load
(c) At Stand-Still (d) None of above.
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