Discussion :: Electronic Devices and Circuits
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A voltage of 9 V is applied in forward direction to a semiconductor diode in series with a load resistance of 1000 Ω. The voltage across the load resistance is zero. It indicates that
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A.
diode is short circuited
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B.
diode is open circuited
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C.
resistor is open circuited
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D.
diode is either o.c or s.c
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Answer : Option B
Explanation :
Since there is no voltage across load resistor, the current is zero and diode is open-circuit. If diode is short- circuited or resistor is open-circuited almost 9 V will appear across resistor.
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