If many turns of an operating coil of an AC...

Question 1 / 270705eccefa4bacbc34ba4d48507

Question 1 of 270705eccefa4bacbc34ba4d48507

If many turns of an operating coil of an AC contactor become short-circuited, in terms of the coil, what is the likely result?

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Question 1 of 27070

If many turns of an operating coil of an AC contactor become short-circuited, in terms of the coil, what is the likely result?

🔍 Key Concepts

• AC contactor coil behavior when turns are shorted • Relationship between number of turns, current, and coil heating in an electromagnetic coil • Effect of short-circuited turns on coil impedance (resistance + inductive reactance)

💭 Think About

• If some of the coil turns are shorted together, what happens to the effective number of turns in use and the coil’s impedance? • When impedance decreases in an AC coil supplied with the same voltage, what happens to the current and the heating effect? • Which choice best matches what would happen to a coil that is drawing abnormally high current due to reduced effective turns?

✅ Before You Answer

• Compare each option to what would happen if current increases sharply in the coil. • Ask yourself: would reduced turns tend to lower or raise the coil’s temperature, and why? • Eliminate any options that assume less current or lower temperature if you conclude the impedance is reduced and current rises.

Question 1 of 27070

If many turns of an operating coil of an AC contactor become short-circuited, in terms of the coil, what is the likely result?

the coil will probably burn out immediately

the coil will operate on reduced current

the coil will continue to operate

the coil temperature will drop

Question 1 / 270705eccefa4bacbc34ba4d48507

Question 1 of 270705eccefa4bacbc34ba4d48507

If many turns of an operating coil of an AC contactor become short-circuited, in terms of the coil, what is the likely result?

Back

Question 1 of 27070

If many turns of an operating coil of an AC contactor become short-circuited, in terms of the coil, what is the likely result?