What is the air gap flux density for PMDC motor? - Study24x7
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Karan Singh
22 May 2019 10:46 AM study24x7 study24x7

What is the air gap flux density for PMDC motor?

A

Bg= µ0(tm/lg) Hm

B

Bg= – µ0Hm

C

Bg= – µ0(tm/lg) Hm

D

Bg= – µ0(lg/tm) Hm

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  • geet sharma
    •  Since, flux crosses the air gap length lg two times a thickness of permanent magnet two times tm. We get, 2*lg* Hg + 2*tm Hm = 0 and we know that air gap flux density is equal to µ times the magnetic field intensity.

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    Reply 22 May 2019 11:21 AM
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