6A72 - A relay coil has 500 ohms resistance, and operates on 125 mA. What value of resistance should be connected in series with it to operate from 110 VDC?
- Correct answer
A.380 ohms
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B.400 ohms
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C.200 ohms
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D.None of the above
This question is one of 100 in FCC Radiotelegraph Element 6 2014. Test yourself on all of them.
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