Engine : Electricity - 148/1386
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| As shown in the illustration, which of the following statements is correct concerning the circuits in a sound powered telephone system? Illustration EL-0093 |
| A) Both the talking and ringing circuits are common circuits. |
| B) The talking circuit is a selective circuit and the ringing circuit is a common circuit. |
| C) Both the talking and ringing circuits are selective circuits. |
| D) The talking circuit is a common circuit and the ringing circuit is a selective circuit. . |
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Illustration EL-0093
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