If a 6-pole motor is supplied at 60 Hz and...

Question 1 / 205eccefa4bacbc34ba4d48225

Question 1 of 205eccefa4bacbc34ba4d48225

If a 6-pole motor is supplied at 60 Hz and runs with a slip of 5%, what is the actual rotor speed?

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Question 1 of 20

5eccefa4bacbc34ba4d48225

If a 6-pole motor is supplied at 60 Hz and runs with a slip of 5%, what is the actual rotor speed?

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🔍 Key Concepts

• Synchronous speed formula for an AC motor: how frequency and number of poles affect speed • Definition of slip and how it relates synchronous speed to actual rotor speed • Converting percent slip into a decimal before using it in a formula

💭 Think About

• First, compute the motor’s synchronous speed at 60 Hz with 6 poles. Which formula connects frequency, poles, and speed in rpm? • Once you know synchronous speed, how does a 5% slip change that speed? Are you subtracting 5% of synchronous speed from synchronous speed itself? • When you apply the slip, do you get a value close to 1200 rpm or closer to 1800 rpm? Use that to narrow down the choices.

✅ Before You Answer

• Be sure to use the correct formula: N_s = (120 × f) / P with f in Hz and P in poles • Convert slip from 5% to 0.05 before multiplying in any formula • After calculating, check that your answer exactly matches one of the multiple-choice options and is less than synchronous speed for a positive slip

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Question 1 of 20

If a 6-pole motor is supplied at 60 Hz and runs with a slip of 5%, what is the actual rotor speed?

1200 rpm

1240 rpm

1140 rpm

1260 rpm

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Question 1 / 205eccefa4bacbc34ba4d48225

Question 1 of 205eccefa4bacbc34ba4d48225

If a 6-pole motor is supplied at 60 Hz and runs with a slip of 5%, what is the actual rotor speed?

Back

Question 1 of 20

5eccefa4bacbc34ba4d48225

If a 6-pole motor is supplied at 60 Hz and runs with a slip of 5%, what is the actual rotor speed?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed