Alternating Current Theory and Application Sample test questions for Underground Mine Electrical Certification
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Question 1 of 5
1. Current changing from 4 to 6 amperes in 1 second induces 40 volts in a coil. Its inductance equals:
Choices:
- 40 milli-Henries
- 4 Henries
- 6 Henries
- 20 Henries
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