Which of the following is most favoured choice for PMDC motor? - Study24x7
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Karan Singh
22 May 2019 10:47 AM study24x7 study24x7

 Which of the following is most favoured choice for PMDC motor?

A

Neodymium-iron-boron

B

Iron-nickel

C

Nickel-neodymium

D

Cannot be given

Railways IIT-JEE Sciences
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  • geet sharma
    • Obvious choice of PMDC motor is neodymium-iron-boron which has high coercivity and high retentivity. Its characteristic is almost a straight line. Hence, neodymium-iron-boron combination is preferred over the other materials.

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    Reply 22 May 2019 11:21 AM
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