The selected answer may or may not be correct. Please only answer if you\'re 100

Question

The selected answer may or may not be correct. Please only answer if you're 100% confident on the answer. Thanks in advance.

A 3-phase, 4-pole, 50 Hz induction motor runs at a speed of 1440 rpm 1. Its slip is 0.04 2. Its rotor field rotates at 60 rpm with respect to rotor 3. Its rotor field rotates at 60 rpm with respect to stator field 4. Its rotor runs at a speed of 60 rpm with respect to stator field 5. Its rotor field rotates at a speed of 1500 rpm with respect to stator From these, the correct statements are 1, 2, 4, 5 1, 2, 3, 4, 5 1, 2, 5 O 1.2.4

Explanation / Answer

Here 1 and 2 are correct.

statement 3 is not correct as both fields are rotating with the same speed.

we know rotor speed (1440) and stator field speed(1500) so statements 4 is also correct

last staement is also true because field speed is 1500 and stator is stationary

so option 1 is right

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