MCQOPTIONS
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MCQOPTIONS
| 1. |
The arc voltage produced in A.C. circuit breaker is always |
| A. | In phase with the arc current |
| B. | Lagging the arc current by 90° |
| C. | Leading the arc current by 90° |
| D. | None of the above |
| Answer» B. Lagging the arc current by 90¬¨‚àû | |