In PMDC motors we use magnetic material with ___________ - Study24x7
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Karan Singh
22 May 2019 10:41 AM study24x7 study24x7

 In PMDC motors we use magnetic material with ___________

A

Low residual flux

B

Low coercivity

C

High residual flux

D

All magnetic materials

Railways IIT-JEE Sciences
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  • geet sharma
    •  In market magnetic materials with various properties are available, but for DC motor application we need magnetic materials with high residual flux in order to get high no load voltage. Along with residual flux, coercivity of material should be high.

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    Reply 22 May 2019 11:24 AM

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