A circuit card in a RADAR system has just been replaced with a spare card. You notice the voltage level at point E in Fig. 8F12 is negative 4.75 volts when the inputs are all at 5 volts. The problem is:
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The 25 K resistor is open.
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The 100 K resistor has been mistakenly replaced with a 50 K resistor.
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The op amp is at the rail voltage.
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Correct AnswerThe 50 K resistor has been mistakenly replaced with a 25 K resistor.
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In the circuit contained in Fig. 8F12, there are 5 volts present at points B and C, and there are zero volts present at points A and D. What is the voltage at point E?
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Correct Answer-1.5 Volts.
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3.75 Volts.
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23.75 Volts.
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4.5 Volts.
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