MCQOPTIONS
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MCQOPTIONS
| 1. |
Current will cause a magnetic field in a conductor as follows: |
| A. | An ac current causes a fixed polarity magnetic field. |
| B. | A dc current causes a fixed polarity magnetic field. |
| C. | A dc current causes an alternating magnetic field. |
| D. | An ac current causes a fixed polarity magnetic field and a dc current causes an alternating magnetic field. |
| Answer» C. A dc current causes an alternating magnetic field. | |