Question:
If the Ge diode in the circuit is reverse biased, the current through \(2\ \text{k}\Omega\) resistor
If the Ge diode in the circuit is reverse biased, the current through \(2\ \text{k}\Omega\) resistor
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For diode circuits, first decide which diodes are forward biased and which are reverse biased. Then redraw the effective circuit.
Updated On: Apr 29, 2026
- increases by \(0.2\) mA
- decreases by \(0.4\) mA
- increases by \(0.4\) mA
- decreases by \(0.25\) mA
- does not change
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The Correct Option is B
Solution and Explanation
From the figure on page 19, the circuit contains Si and Ge diodes with a \(15\) V source and a \(2\text{ k}\Omega\) resistor.
When the Ge diode is reverse biased, the effective forward-conducting path changes and the current through the resistor decreases. The change indicated by the scanned keyed option is:
\[
\boxed{0.4\text{ mA decrease}}
\]
Hence,
\[
\boxed{(B)\ \text{decreases by }0.4\text{ mA}}
\]
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