MCQOPTIONS
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| 1. |
The armature of dc motor has \[20\,\Omega \] resistance. It draws current of 1.5 ampere when run by 220 volts dc supply. The value of back e.m.f. induced in it will be [MP PMT 1999] |
| A. | 150 V |
| B. | 170 V |
| C. | 180 V |
| D. | 190 V |
| Answer» E. | |