1. What effect does reverse biasing have on a PN junction diode?
- It decreases the resistance of the diode
- It causes the diode to conduct current in the forward direction
- It increases the width of the depletion region
- It has no effect on the diode
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Answer: Option C. It increases the width of the depletion region
2. When is a p-n diode considered to be forward-biased?
- When the p-side is connected to the positive terminal of a voltage source and the n-side is connected to the negative terminal
- When the p-side is connected to the negative terminal and the n-side is connected to the positive terminal
- When no voltage is applied across the diode
- When the diode is broken
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Answer: Option A. When the p-side is connected to the positive terminal of a voltage source and the n-side is connected to the negative terminal
3. What is the minimum number of logic gates in a VLSI?
- Two gates
- Four gates
- Ten gates
- It varies depending on the complexity of the circuit
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Answer: Option D. It varies depending on the complexity of the circuit
4. When is a p-n diode in reverse bias?
- When both sides of the diode are connected to the same terminal of a voltage source
- When the p-side is connected to the negative terminal of a voltage source and the n-side is connected to the positive terminal
- When no voltage is applied across the diode
- When the diode is not working
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Answer: Option B. When the p-side is connected to the negative terminal of a voltage source and the n-side is connected to the positive terminal
5. What is the total forward current in a diode?
- The sum of the currents flowing through the p-n junction in the forward direction
- The current flowing in the reverse direction
- The current from an external source when the diode is not connected
- The current when the diode is off
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Answer: Option A. The sum of the currents flowing through the p-n junction in the forward direction