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5. An experimental was performed to determine the input resistance of a computer sound system. A6 Volt signal source, a 4.7 kOhm resistor, and the two input leads to the sound system were connected in series. When the voltage was measured across the input leads of the sound system, it was 3.8 Volts. What is the input resistance of the system?
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Lsao System ba R2 2. ラ1 2.2.2.2 - t R4.7XIo3 23So0 3-8 : 1R2ろ尺2 3723s。リ 6 V 3.8

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