MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the air gap flux density for PMDC motor? |
| A. | B<sub>g</sub>= µ<sub>0</sub>(t<sub>m</sub>/l<sub>g</sub>) H<sub>m</sub> |
| B. | B<sub>g</sub>= – µ<sub>0</sub>H<sub>m</sub> |
| C. | B<sub>g</sub>= – µ<sub>0</sub>(t<sub>m</sub>/l<sub>g</sub>) H<sub>m</sub> |
| D. | B<sub>g</sub>= – µ<sub>0</sub>(lg/t<sub>m</sub>) H<sub>m</sub> |
| Answer» D. B<sub>g</sub>= ‚Äö√Ñ√∂‚àö√ë‚àö¬® ¬¨¬®¬¨¬µ<sub>0</sub>(lg/t<sub>m</sub>) H<sub>m</sub> | |