MCQOPTIONS
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MCQOPTIONS
| 1. |
When Copper brushes are used in DC machine? |
| A. | Where low voltage and high currents are involved |
| B. | Where high voltage and small currents are involved |
| C. | Cannot be determined |
| D. | Where low voltage and low currents are involved |
| Answer» B. Where high voltage and small currents are involved | |